MESON Chess Problem Database

Problem Display
PID: 63294 (1Kn5/1pp2p1B/6q1/N7/8/R1BpP1Qp/2k4r/4R3 w - - 0 1)

Kipping, Cyril Stanley

Chess, 1945

1Kn5/1pp2p1B/6q1/N7/8/R1BpP1Qp/2k4r/4R3

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Qxh2#
    • 1...Qb6
      • 2.Qxh2#
    • 1...Qe6
      • 2.Qxh2#
    • 1...Qh6
      • 2.Qxh2#
  • Tries
    • 1.Be5?
      • threat
        • 2.Ra2#
      • 1...Kd2
        • 2.Ra2#
      • 1...Qb6
        • 2.Qxh2#
      • 1...Qe6
        • 2.Qxh2#
      • 1...d2!
    • 1.Bf6?
      • threat
        • 2.Ra2#
      • 1...Kd2
        • 2.Ra2#
      • 1...d2
        • 2.Qxc7#
      • 1...Qxf6!
    • 1.Qxh2+?
      • 1...d2
        • 2.Qxd2#
      • 1...Qg2!
    • 1.Qe5?
      • threat
        • 2.Ra2#
      • 1...Qb6
        • 2.Qxh2#
      • 1...Qe6
        • 2.Qxh2#
      • 1...d2!
    • 1.Qxc7?
      • threat
        • 2.Ra2#
      • 1...d2
        • 2.Ba1#
        • 2.Bd4#
        • 2.Be5#
        • 2.Bf6#
        • 2.Bg7#
        • 2.Bh8#
      • 1...Qb6
        • 2.Qxh2#
      • 1...Qe6
        • 2.Qxh2#
      • 1...Qc6!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Ra2#
      • 1...Kd2
        • 2.Ra2#
      • 1...Qb6
        • 2.Qxh2#
      • 1...Qe6
        • 2.Qxh2#
      • 1...d2
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • Q(e);N_GUARD,P_SPINP(c)::QAR(E),XR(b)
  • Tries
    • Try
      • B(C);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
        • Q(e);N_GUARD,P_SPINP(c)::QAR(E),XR(b)
      • Refutation
        • P(c);P_SPINQ(e)
    • Try
      • B(C);
      • Threat
        • R(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
        • P(c);P_SPINQ(e),SBLOCK::QAR(E),XP(g)
      • Refutation
        • Q(e);P_SPINP(c),XB(C)
    • Try
      • Q(E);CHECK,XR(b)
      • Vars
        • P(c);P_SPINP(c),P_SPINQ(e)::QAR1(E),XP(c)
      • Refutation
        • Q(e);P_SPINP(c),P_SPINQ(e)
    • Try
      • Q(E);
      • Threat
        • R(B)
      • Vars
        • Q(e);N_GUARD,P_SPINP(c)::QAR(E),XR(b)
      • Refutation
        • P(c);P_SPINQ(e)
    • Try
      • Q(E);XP(g)
      • Threat
        • R(B)
      • Vars
        • Q(e);N_GUARD,P_SPINP(c)::QAR(E),XR(b)
      • Refutation
        • Q(e);P_SPINP(c)
  • Actual
    • B(C);
    • Threat
      • R(B)
    • Vars
      • K(a);P-FLIGHT::R(B)
      • Q(e);N_GUARD,P_SPINP(c)::QAR(E),XR(b)
      • P(c);P_SPINQ(e),SBLOCK::QAR(E),XP(g)
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