Problem 11613 goproblems.com


Author	Mocramis	Created	2008-08-06
Difficulty	8 dan (history)	Source	N/A
AVG solve time	109 sec	Stars	2.67 (6 votes)
User attempts	103 / 395	Collections	Counting Points, Ko / Ko Threats
Genre	life and death	Your attempts	N/A
Similar problems
Created	2008-08-06
Source	N/A
Stars	2.67 (6 votes)
Collections	Counting Points, Ko / Ko Threats
Your attempts	N/A

(;AB[qa]AB[pb]AB[pc]AB[pd]AW[qb]AW[rb]AW[qc]AW[qd]AB[rc]AB[rd]AB[re]AB[qe]AW[pe]AW[pf]AW[qf]AW[rf]AW[sf]AW[of]AB[nd]AB[nc]AB[md]AW[ld]AW[lc]AW[kb]AW[mb]AW[nb]AB[le]AB[kd]AB[jd]AB[kc]AB[jb]AW[me]AW[mf]AW[ob]AB[lg]AW[sc]AW[sd]AB[ka]AB[sa]C[White to capture black. All ko threats are on the board.]AP[goproblems] (;W[lb];B[oa] (;W[na];B[pa] (;W[la];B[ja] (;W[od];B[oc] (;W[ne];B[oe] (;W[lf];B[ke] (;W[od];B[ra] (;W[se];B[oe] (;W[sb];B[mc];W[od]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[kf];B[mc] (;W[od];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]))) (;W[sb];B[se]C[Wrong! CHOICE]) (;W[oe];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[lf];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[lf];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe];B[ma]C[Wrong! CHOICE]))) (;W[oc];B[od] (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe];B[ma]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[mc] (;W[od];B[oc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[lf];B[ma]C[Wrong! CHOICE])) (;W[oc];B[od] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[oc] (;W[od];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[oc] (;W[od];B[oe] (;W[lf];B[ke] (;W[od];B[ra] (;W[se];B[oe] (;W[sb];B[mc];W[od]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[kf];B[mc] (;W[od];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]))) (;W[sb];B[se]C[Wrong! CHOICE]) (;W[oe];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[lf];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[oe];B[mc] (;W[od]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]))) (;W[oc];B[od] (;W[oe];B[la] (;W[ne];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[ma] (;W[ra];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[sb];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE]))) (;W[ne];B[la] (;W[oe];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[ma] (;W[ra];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[sb];B[mc] (;W[oe];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]))) (;W[mc];B[la]C[Wrong! CHOICE]) (;W[la];B[mc]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[od];B[oc] (;W[ne];B[la] (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[sb];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[sb];B[ja];W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[se];B[ja] (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[oe];B[ma];W[ra];B[mc]C[Wrong! CHOICE]))) (;W[oe];B[la] (;W[ne];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[sb];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE])) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]))) (;W[mc];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[la]C[Wrong! CHOICE]) (;W[la];B[mc] (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[oe];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE])) (;W[ma];B[mc] (;W[oe];B[la]C[Wrong! CHOICE]) (;W[ne];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[la]C[Wrong! CHOICE]) (;W[se];B[la]C[Wrong! CHOICE])) (;W[se];B[la]C[Wrong! CHOICE]))) (;W[la];B[ja] (;W[na];B[pa] (;W[od];B[oc] (;W[ne];B[oe] (;W[lf];B[ke] (;W[od];B[ra] (;W[se];B[oe] (;W[sb];B[mc];W[od]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[kf];B[mc] (;W[od];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]))) (;W[sb];B[se]C[Wrong! CHOICE]) (;W[oe];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[lf];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[lf];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe]))) (;W[oc];B[od] (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[mc] (;W[od];B[oc]) (;W[oc];B[od]) (;W[ne];B[oc] (;W[od]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[oc] (;W[od]) (;W[oe];B[mc]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]))) (;W[od];B[oc] (;W[na];B[pa] (;W[ne];B[oe] (;W[lf];B[ke] (;W[od];B[ra] (;W[se];B[oe] (;W[sb];B[mc];W[od]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[kf];B[mc] (;W[od];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]))) (;W[sb];B[se]C[Wrong! CHOICE]) (;W[oe];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[lf];B[ma]C[Wrong! CHOICE]) (;W[od];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[lf];B[ma]C[Wrong! CHOICE])) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe]))) (;W[ne];B[na]C[Wrong! CHOICE]) (;W[mc];B[na]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[oc];B[od] (;W[na];B[pa] (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[oe];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ne];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[oe]))) (;W[oe]) (;W[ne];B[na]C[Wrong! CHOICE]) (;W[mc];B[na]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ne];B[na]C[Wrong! CHOICE])) (;W[ma];B[oc] (;W[ne];B[ja] (;W[od];B[la]C[Wrong! CHOICE]) (;W[oe];B[la]C[Wrong! CHOICE])) (;W[od];B[oe]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[od];B[oc] (;W[ne];B[la] (;W[ma];B[ja]C[Wrong! CHOICE]) (;W[na];B[pa] (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[sb];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[sb];B[ja];W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[se];B[ja] (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[oe])))) (;W[mc];B[na]C[Wrong! CHOICE]) (;W[oe];B[la]C[Wrong! CHOICE]) (;W[se];B[la]C[No, it will not work. CHOICE];W[ra];B[ma];W[pa];B[oe];W[na];B[mc];W[oa];B[qa]) (;W[na];B[pa] (;W[ne];B[la] (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[sb];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[sb];B[ja];W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[se];B[ja] (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ra];B[oe] (;W[lf];B[ke] (;W[od];B[ma];W[mc]C[Well done, you won the ko! CHOICERIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[ke];B[lf] (;W[od];B[ma];W[mc]C[Well done, you won the ko! RIGHT]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]))) (;W[oe]))) (;W[oe];B[la] (;W[ne]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE])) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE]))) (;W[mc];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[la]C[Wrong! CHOICE]) (;W[la];B[mc] (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[oe];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE])) (;W[ma];B[mc] (;W[oe];B[la]C[Wrong! CHOICE]) (;W[ne];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[la]C[Wrong! CHOICE]) (;W[se];B[la]C[Wrong! CHOICE])) (;W[se];B[la]C[Wrong! CHOICE]))) (;W[oc];B[od] (;W[ma];B[ja]C[No, it will not work. CHOICE];W[oe];B[la];W[ne];B[pa];W[se];B[na];W[ra];B[mc]) (;W[na];B[la]C[Wrong! CHOICE]) (;W[la];B[ja] (;W[na];B[pa]) (;W[oe]) (;W[ne];B[na]C[Wrong! CHOICE]) (;W[mc];B[na]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE])) (;W[oe];B[la] (;W[na];B[pa] (;W[ne];B[ja] (;W[se];B[ma];W[ra];B[mc]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[ma] (;W[ra];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc] (;W[ne];B[ma]C[Wrong! CHOICE]) (;W[ra];B[ma]C[Wrong! CHOICE])) (;W[sb];B[mc] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[ne];B[ma]C[Wrong! CHOICE]))) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[ne];B[na]C[Wrong! CHOICE])) (;W[ne];B[la] (;W[ma];B[ja];W[oe];B[pa];W[se];B[na];W[ra];B[mc]) (;W[na];B[pa] (;W[oe]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE]) (;W[ma];B[mc]C[Wrong! CHOICE]) (;W[sb];B[mc] (;W[oe]) (;W[ra];B[ma]C[Wrong! CHOICE]))) (;W[oe];B[na]C[Wrong! CHOICE])))) (;W[oc];B[lb] (;W[mc];B[od] (;W[ne];B[oa] (;W[oe];B[pa] (;W[ma];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE])) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[oe];B[oa] (;W[ne];B[pa] (;W[ma];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE])) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[oa];B[ma]C[Wrong! CHOICE]) (;W[ma];B[oa]C[Wrong! CHOICE]) (;W[na];B[pa] (;W[ne];B[oa];W[oe];B[ma]C[Wrong! CHOICE]) (;W[oe];B[oa];W[ne];B[ma]C[Wrong! CHOICE])) (;W[se];B[oa] (;W[ra];B[pa] (;W[ne];B[ma];W[oe];B[na]C[Wrong! CHOICE]) (;W[oe];B[ma];W[ne];B[na]C[Wrong! CHOICE]) (;W[ma];B[na] (;W[ne];B[la]C[Wrong! CHOICE]) (;W[oe];B[la]C[Wrong! CHOICE]))) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ne];B[ma] (;W[ra];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[ma];B[la] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE]))) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[od];B[mc]MA[pb]MA[pc]MA[pd]C[You take the squared stones but there is a better way. CHOICE]) (;W[se];B[mc];W[od]MA[pd]MA[pc]MA[pb]C[You take the squared stones but there is a better way.CHOICE])) (;W[la];B[lb] (;W[oc];B[mc];W[od]MA[pd]MA[pc]MA[pb]C[You take the squared stones but there is a better way. CHOICE]) (;W[mc];B[ma] (;W[oc];B[od] (;W[ne];B[oa]C[Wrong! CHOICE]) (;W[oe];B[oa]C[Wrong! CHOICE]) (;W[oa];B[pa]C[Wrong! CHOICE]) (;W[na];B[oa]C[Wrong! CHOICE])) (;W[od];B[oc] (;W[ne];B[pa]C[Wrong! CHOICE]) (;W[oe];B[oa]C[Wrong! CHOICE]) (;W[oa];B[pa]C[Wrong! CHOICE]))) (;W[od];B[oc] (;W[ne];B[mc]C[Wrong! CHOICE]) (;W[mc];B[oa];W[ne] (;B[oe]) (;B[pa] (;W[oe];B[ma]C[Wrong! CHOICE]) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]))))) (;W[mc];B[oc]C[Wrong! CHOICE]) (;W[od];B[lb] (;W[oc];B[mc]MA[pb]MA[pc]MA[pd]C[You take the squared stones but there is a better way. CHOICE]) (;W[mc];B[oc] (;W[ne];B[pa] (;W[oa];B[oe] (;W[lf];B[ke] (;W[od];B[ma] (;W[ra]C[Well done, you won the ko! CHOICERIGHT]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[se];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[sb];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE]))) (;W[ke];B[lf] (;W[od];B[ma] (;W[ra]C[Well done, you won the ko! RIGHT]) (;W[se];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[sb];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[se];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[ma];B[la] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE])) (;W[oe];B[oa] (;W[sb];B[ma] (;W[ra];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[se];B[ma];W[ra];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE])) (;W[sb];B[oe] (;W[ra];B[oa] (;W[od];B[ma];W[na]C[Well done, you won the ko! RIGHT]) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE];W[od];B[na])) (;W[lf];B[ke] (;W[ra];B[oa];W[od];B[na];W[ma]C[Well done, you won the ko! RIGHT]) (;W[oa];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE]))) (;W[oa];B[ma]C[Wrong! CHOICE])) (;W[se];B[ma] (;W[ra];B[oe];W[ke];B[lf];W[od];B[oa];W[na]C[Well done, you won the ko! RIGHT]) (;W[oa];B[na]C[Wrong! CHOICE]) (;W[oe];B[oa];W[ra];B[na]C[Wrong! CHOICE]))) (;W[oe];B[oa] (;W[se];B[ma]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE]) (;W[ne];B[pa] (;W[sb];B[ma] (;W[ra];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[se];B[ma];W[ra];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]))) (;W[sb];B[oa] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[ne];B[oe] (;W[ra];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[pa];B[na]C[Wrong! CHOICE])) (;W[lf];B[ke] (;W[od];B[pa] (;W[ra];B[oe] (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[se];B[ma];W[od];B[na]C[Wrong! CHOICE]) (;W[kf];B[ma];W[od];B[na]C[Wrong! CHOICE])) (;W[oe];B[ma]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE])) (;W[ra];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[pa];B[na]C[Wrong! CHOICE]))) (;W[ke];B[lf];W[od];B[pa];W[ra];B[oe] (;W[se];B[ma]C[Wrong! CHOICE]) (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]))) (;W[oe];B[ma]C[Wrong! CHOICE])) (;W[se];B[oa] (;W[ra];B[ma]C[Wrong! CHOICE]) (;W[ne];B[oe] (;W[ra];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[pa];B[na]C[Wrong! CHOICE])) (;W[lf];B[ke] (;W[od];B[pa] (;W[ra];B[oe] (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[kf];B[ma];W[od];B[na]C[Wrong! CHOICE])) (;W[oe];B[ma]C[Wrong! CHOICE])) (;W[ra];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[pa];B[na]C[Wrong! CHOICE]))) (;W[ke];B[lf];W[od];B[pa] (;W[ra];B[oe] (;W[na];B[ma]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE])) (;W[na];B[ma]C[Wrong! CHOICE]))) (;W[oe];B[ma]C[Wrong! CHOICE])))) (;W[se];B[lb]C[Wrong! Black will win this life race. Explore the solution to see why. CHOICE];W[mc];B[ma];W[oc];B[od];W[ra];B[oa];W[pa];B[na]) (;W[sb];B[lb]C[Wrong! Black will win this life race. Explore the solution to see why. CHOICE];W[mc];B[oa];W[ra];B[pa];W[oc];B[od];W[ne];B[ma];W[oe];B[na]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oa];B[lb] (;W[mc];B[pa] (;W[od];B[oc] (;W[ne]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[ma] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE]))) (;W[oc];B[od] (;W[ne];B[ma] (;W[oe];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[oe];B[ma] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ma];B[la] (;W[od];B[oc] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[oc];B[od] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[oc]C[Wrong! Black will win this life race. Explore the solution to see why. CHOICE];W[ra];B[ma];W[ne];B[na])) (;W[pa];B[mc]MA[qa]MA[sa]C[You take the squared stones but there is a better way CHOICE]) (;W[oc];B[od] (;W[pa];B[mc]MA[qa]MA[sa]C[You take the squared stones but there is a better way CHOICE]) (;W[mc];B[ma]C[Wrong! CHOICE])) (;W[od];B[oc] (;W[pa];B[mc]MA[qa]MA[sa]C[You take the squared stones but there is a better way CHOICE]) (;W[mc];B[pa] (;W[ne];B[oe] (;W[lf];B[ke] (;W[od];B[ma] (;W[ra]C[Well done, you won the ko! CHOICERIGHT]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[se];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[sb];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE]))) (;W[ke];B[lf] (;W[od];B[ma] (;W[ra]C[Well done, you won the ko! RIGHT]) (;W[se];B[na]C[Wrong! CHOICE]) (;W[oe];B[na]C[Wrong! CHOICE])) (;W[sb];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[se];B[ma] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[na]C[Wrong! CHOICE])) (;W[ma];B[la] (;W[od];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[ma];B[la]C[Wrong! CHOICE]) (;W[se];B[ma]C[Wrong! CHOICE]) (;W[sb];B[ma]C[Wrong! CHOICE])) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[oe];B[ma] (;W[ne];B[na]C[Wrong! CHOICE]) (;W[ra];B[sb]C[Wrong! CHOICE]) (;W[sb];B[na]C[Wrong! CHOICE]) (;W[se];B[na]C[Wrong! CHOICE]))) (;W[ne];B[mc]C[Wrong! CHOICE]) (;W[ra];B[mc]C[Wrong! CHOICE]) (;W[sb];B[mc]C[Wrong! CHOICE]) (;W[oe];B[mc]C[Wrong! CHOICE]) (;W[se];B[mc]C[Wrong! CHOICE]))))