MESON Chess Problem Database

Problem Display
PID: 21958 (K7/5Q2/8/B7/2B2P1N/8/3Rq1P1/4k3 w - - 0 1)

Kipping, Cyril Stanley

Hull Times, 1922

K7/5Q2/8/B7/2B2P1N/8/3Rq1P1/4k3

#2

8 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3+
      • 2.Sxf3#
    • 1...Qxg2+
      • 2.Sxg2#
    • 1...Qe5
      • 2.Sf3#
    • 1...Qe6
      • 2.Sf3#
      • 2.Qxe6#
    • 1...Qe7
      • 2.Sf3#
      • 2.Qxe7#
    • 1...Qe8+
      • 2.Qxe8#
  • Keys
    • 1.Qa7!
      • 1...Qf3+
        • 2.Sxf3#
      • 1...Qxg2+
        • 2.Sxg2#
      • 1...Qe4+
        • 2.Rd5#
      • 1...Qe8+
        • 2.Rd8#
      • 1...Kf1
        • 2.Rd1#
      • 1...Qxc4
        • 2.Qf2#
      • 1...Qxd2
        • 2.Qg1#
      • 1...Qd1
        • 2.Qg1#
        • 2.Qf2#
      • 1...Qf1
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
      • 1...Qd3
        • 2.Qf2#
      • 1...Qg4
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
        • 2.Qg1#
        • 2.Qf2#
      • 1...Qh5
        • 2.Rd5#
        • 2.Qg1#
        • 2.Qf2#
      • 1...Qf2
        • 2.Qxf2#
      • 1...Qe3
        • 2.Qxe3#
      • 1...Qe5
        • 2.Sf3#
        • 2.Qg1#
        • 2.Qf2#
      • 1...Qe6
        • 2.Sf3#
        • 2.Rd5#
        • 2.Rd6#
        • 2.Rd7#
        • 2.Rd8#
        • 2.Qg1#
        • 2.Qf2#
      • 1...Qe7
        • 2.Sf3#
        • 2.Rd6#
        • 2.Qg1#
        • 2.Qf2#
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(b);CHECK,N_GUARD::S(E),XQ(b)
    • Q(b);CHECK,XP(B)::S(E),XQ(b)
    • Q(b);N_GUARD::S(E)
    • Q(b);CHECK,OGATEB::QAB(G),XQ(b)
  • Actual
    • Q(G);
    • Vars
      • Q(b);CHECK,N_GUARD::S(E),XQ(b)
      • Q(b);CHECK,XP(B)::S(E),XQ(b)
      • Q(b);CHECK,N_GUARD::B(F)+R(A)
      • K(a);P-FLIGHT,P_SPINQ(b)::R(A)
      • Q(b);N_GUARD,XB(C)::QAB1(G)
      • Q(b);N_GUARD,P_SPINQ(b),XR(A)::QAR2(G)
      • Q(b);N_GUARD::QAB1(G)
      • Q(b);N_GUARD::QAB1(G),XQ(b)
      • Q(b);OGATEB::QAR2(G),XQ(b)
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