(;GM[1]FF[4]SZ[19]
GN[''a'' above: short of liberties]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem244/Attempts]AP[GoWiki:2009]
DT[2023-02-05]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem244/Attempts

''a'' above: short of liberties]
PL[B]

AB[qa][ra][qb][qc][qd][rd][sd][se][rf][rg][qh][oi][qi][pj][rj][ok][pk][nl][om][pm][pn][po][pp][qq][rq]
AW[ob][rb][sb][nc][od][pe][qe][re][pg][qg][rh][ri][qj][qk][rk][ol][pl][qm][qn][rp]

;B[sj]C[B1]MN[1]
;W[sk]C[W2]MN[2]
;B[rm]C[B3]MN[3]
;W[rn]C[W4]MN[4]
;B[ql]C[B5]MN[5]

;
)
