Problem	21420
Created	2017-07-16
Source
Rating

Difficulty	30 kyu
Average Solve Time	13 secs
User Attempts	634 / 692
Solve Ratio Rating	30 kyu
	rating history

(;SZ[4]AB[bb]AB[ab]AB[aa]AB[ba]AW[bc]AW[ac]AW[bd]AW[ad]AB[cb]AB[dc]AW[cc]AW[db]AW[da]C[FORCE]AP[goproblems] (;B[ca]C[RIGHT]) (;B[cd]C[RIGHT]) (;B[dd]C[FORCE] (;W[ca]) (;W[cd])))