MESON Chess Problem Database

Problem Display
PID: 46294 (4K3/1ppP1B2/4R3/P2Rp3/2k2P1Q/1nNpr3/N7/6B1 w - - 0 1)

Tikhanov, Nikolai

2nd Comm., Probleemblad, 1997

4K3/1ppP1B2/4R3/P2Rp3/2k2P1Q/1nNpr3/N7/6B1

#2

11 + 7

102 Probleemblad 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Rdxe5?
      • threat
        • 2.Rd6#
      • 1...Kd4
        • 2.f5#
      • 1...Rxe5
        • 2.Rxe5#
      • 1...Sd4
        • 2.Rc6#
      • 1...Sc5!
    • 1.Rexe5?
      • threat
        • 2.Rd6#
      • 1...Rxe5+
        • 2.Rxe5#
      • 1...Sd4
        • 2.Rc5#
      • 1...Sc5!
    • 1.Rc6+?
      • 1...Sc5
        • 2.Rdd6#
      • 1...bxc6!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Rd6#
      • 1...Kd4
        • 2.fxe5#
      • 1...exf4
        • 2.Re4#
      • 1...Sd4
        • 2.Rc6#
      • 1...Sc5
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);XP(e)
      • Threat
        • B(J)+R(H)
      • Vars
        • K(d);P-FLIGHT,P_SPINR(c)::QAR(E)+P(D)
        • R(c);OGATE,P_PINR(H),XR(G)::B(J)+R(H),XR(c)
        • S(a);SBLOCK::B(J)+R(H),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(H);P_SPINR(H),XP(e)
      • Threat
        • B(J)+R(G)
      • Vars
        • R(c);CHECK,OGATE,XR(H)::B(J)+R(G),XR(c)
        • S(a);SBLOCK::B(J)+R(G),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(H);CHECK
      • Vars
        • S(a);P_SPINS(a)::B(J)+R(G)
      • Refutation
        • P(f);XR(H)
  • Actual
    • R(G);
    • Threat
      • B(J)+R(H)
    • Vars
      • K(d);P-FLIGHT,P_SPINR(c)::QAR(E)+P(D),XP(e)
      • P(e);OGATE,P_PINR(H),P_SPINP(e),XP(D)::B(J)+R(H),DCHECK
      • S(a);SBLOCK::B(J)+R(H),DCHECK
      • S(a);SBLOCK::R1(G)
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