(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[https://senseis.xmp.net/?DontThrowInTesuji]AP[GoWiki:2009]
DT[2021-09-14]
C[Diagram from https://senseis.xmp.net/?DontThrowInTesuji

Black to play]
PL[B]

AB[qo][ro][so][qp][oq][pq][qq][os]
AW[ql][rm][pn][po][np][pp][rp][nq][rq][nr][qr][qs]

;B[rr]C[B1]MN[1]
;W[sr]C[W2]MN[2]
;B[rs]C[B3]MN[3]
;W[ss]C[W4]MN[4]

;
)
