MESON Chess Problem Database

Problem Display
PID: 47995 (kn4rR/B3R3/2P5/8/8/8/6Q1/4K3 w - - 0 1)

Kipping, Cyril Stanley

Chess Amateur (The), 1929

kn4rR/B3R3/2P5/8/8/8/6Q1/4K3

#2

6 + 3

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg2
      • 2.Rxb8#
    • 1...Rg3
      • 2.Rxb8#
    • 1...Rg4
      • 2.Rxb8#
    • 1...Rg5
      • 2.Rxb8#
    • 1...Rg6
      • 2.Rxb8#
    • 1...Rg7
      • 2.Rxb8#
    • 1...Sxc6
      • 2.Rxg8#
      • 2.Qxc6#
  • Tries
    • 1.Bg1?
      • threat
        • 2.Ra7#
      • 1...Sxc6
        • 2.Rxg8#
      • 1...Sa6
        • 2.c7#
      • 1...Sd7
        • 2.c7#
      • 1...Rg7
        • 2.Qa2#
      • 1...Re8!
    • 1.Bd4?
      • threat
        • 2.Ra7#
      • 1...Sxc6
        • 2.Rxg8#
      • 1...Sa6
        • 2.c7#
      • 1...Sd7
        • 2.c7#
      • 1...Rg7
        • 2.Qa2#
      • 1...Re8!
    • 1.Bc5?
      • threat
        • 2.Ra7#
      • 1...Sxc6
        • 2.Rxg8#
      • 1...Sa6
        • 2.c7#
      • 1...Sd7
        • 2.c7#
      • 1...Rg7
        • 2.Qa2#
      • 1...Re8!
    • 1.Bb6?
      • threat
        • 2.Ra7#
      • 1...Sxc6
        • 2.Rxg8#
      • 1...Sa6
        • 2.c7#
      • 1...Sd7
        • 2.c7#
      • 1...Rg7
        • 2.Qa2#
      • 1...Re8!
  • Keys
    • 1.Be3!
      • threat
        • 2.Ra7#
      • 1...Sxc6
        • 2.Rxg8#
      • 1...Sa6
        • 2.c7#
      • 1...Sd7
        • 2.c7#
      • 1...Rg7
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • R(c);OGATE,P_SPINS(b),XQ(B)::R1(F),XS(b)
    • R(c);OGATE,P_SPINS(b)::R1(F),XS(b)
  • Tries
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • S(b);OGATEB,P_SPINR(c),P_SPINS(b),XP(C)::R(F),XR(c)
        • S(b);N_GUARD,P_SPINR(c)::QAB(B)+P(C)
        • R(c);P_SPINS(b)::QAR(B)
      • Refutation
        • R(c);P_PINR(E)
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • S(b);OGATEB,P_SPINR(c),P_SPINS(b),XP(C)::R(F),XR(c)
        • S(b);N_GUARD,P_SPINR(c)::QAB(B)+P(C)
        • R(c);P_SPINS(b)::QAR(B)
      • Refutation
        • R(c);P_PINR(E)
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • S(b);OGATEB,P_SPINR(c),P_SPINS(b),XP(C)::R(F),XR(c)
        • S(b);N_GUARD,P_SPINR(c)::QAB(B)+P(C)
        • R(c);P_SPINS(b)::QAR(B)
      • Refutation
        • R(c);P_PINR(E)
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • S(b);OGATEB,P_SPINR(c),P_SPINS(b),XP(C)::R(F),XR(c)
        • S(b);N_GUARD,P_SPINR(c)::QAB(B)+P(C)
        • R(c);P_SPINS(b)::QAR(B)
      • Refutation
        • R(c);P_PINR(E)
  • Actual
    • B(D);
    • Threat
      • R1(E)
    • Vars
      • S(b);OGATEB,P_SPINR(c),P_SPINS(b),XP(C)::R(F),XR(c)
      • S(b);N_GUARD,P_SPINR(c)::QAB(B)+P(C)
      • R(c);P_SPINS(b)::QAR(B)
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