MESON Chess Problem Database

Problem Display
PID: 15495 (3K4/1Pr5/1RPk4/5Q2/8/8/8/8 w - - 0 1)

Kwiatkowski, Vitaly I

Shakhmaty v SSSR, 1984

3K4/1Pr5/1RPk4/5Q2/8/8/8/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987
2838 Fun with Chess Miniatures 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.b8Q#
      • 2.b8B#
    • 1...Rxb7
      • 2.cxb7#
    • 1...Rd7+
      • 2.cxd7#
    • 1...Re7
      • 2.c7#
    • 1...Rf7
      • 2.c7#
    • 1...Rg7
      • 2.c7#
    • 1...Rh7
      • 2.c7#
    • 1...Rc8+
      • 2.bxc8S#
  • Tries
    • 1.Rb5?
      • threat
        • 2.Qg6#
        • 2.Qd5#
        • 2.Qf6#
      • 1...Rd7+
        • 2.Qxd7#
      • 1...Kxc6
        • 2.Qc5#
        • 2.Qd5#
      • 1...Re7
        • 2.Qd5#
      • 1...Rf7
        • 2.Qd5#
      • 1...Rg7
        • 2.Qd5#
        • 2.Qf6#
      • 1...Rc8+!
    • 1.b8S?
      • 1...Rd7+
        • 2.cxd7#
      • 1...Rxc6
        • 2.Rxc6#
      • 1...Ra7
        • 2.c7#
      • 1...Rb7
        • 2.cxb7#
      • 1...Re7
        • 2.c7#
      • 1...Rf7
        • 2.c7#
      • 1...Rg7
        • 2.c7#
      • 1...Rh7
        • 2.c7#
      • 1...Rc8+!
  • Keys
    • 1.Ra6!
      • 1...Rd7+
        • 2.cxd7#
      • 1...Rc8+
        • 2.bxc8S#
      • 1...Rxc6
        • 2.b8Q#
        • 2.b8B#
      • 1...Rxb7
        • 2.cxb7#
      • 1...Re7
        • 2.c7#
      • 1...Rf7
        • 2.c7#
      • 1...Rg7
        • 2.c7#
      • 1...Rh7
        • 2.c7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(b);P_SPINR(b),XP(C)::P=Q
    • R(b);OGATE,XP(D)::R(B)+P(C),XR(b)
    • R(b);CHECK,OGATE::R(B)+P(C),XR(b)
    • R(b);OGATE::R(B)+P(C)
    • R(b);CHECK,OGATE::PXR(b)=S
  • Tries
    • Try
      • R(B);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);CHECK,N_GUARD::QAR1(A),XR(b)
        • R(b);::QAR1(A)
      • Refutation
        • R(b);CHECK
    • Try
      • P(D);
      • Vars
        • R(b);CHECK,OGATE::R(B)+P(C),XR(b)
        • R(b);OGATE,P_SPINR(b),XP(C)::R1(B),XR(b)
        • R(b);OGATE::R(B)+P(C)
        • R(b);OGATE::R(B)+P(C),XR(b)
      • Refutation
        • R(b);CHECK
  • Actual
    • R(B);
    • Vars
      • R(b);CHECK,OGATE::R(B)+P(C),XR(b)
      • R(b);CHECK,OGATE::PXR(b)=S
      • R(b);P_SPINR(b),XP(C)::P=Q
      • R(b);OGATE,XP(D)::R(B)+P(C),XR(b)
      • R(b);OGATE::R(B)+P(C)
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