MESON Chess Problem Database

Problem Display
PID: 41431 (3R3b/NR2r3/5P2/P1kP2BQ/2P5/n4N2/8/5B1K w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Shakhmaty, 1984

3R3b/NR2r3/5P2/P1kP2BQ/2P5/n4N2/8/5B1K

#2

12 + 4

3748 FIDE Album (1983-1985) 1992
6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Bxe3#
    • 1...Rc7
      • 2.Be3#
    • 1...Rf7
      • 2.Be3#
    • 1...Rg7
      • 2.Be3#
    • 1...Rh7
      • 2.Be3#
    • 1...Sb1
      • 2.Rb5#
    • 1...Sc2
      • 2.Rb5#
    • 1...Sxc4
      • 2.Rb5#
    • 1...Sb5
      • 2.Rxb5#
  • Tries
    • 1.Bf4?
      • threat
        • 2.Bd6#
      • 1...Sxc4
        • 2.Rb5#
      • 1...Re2
        • 2.Rc8#
      • 1...Sb5
        • 2.Rxb5#
      • 1...Re6
        • 2.dxe6#
      • 1...Rd7
        • 2.d6#
      • 1...Re5!
    • 1.Rc8+?
      • 1...Kd6
        • 2.Rc6#
      • 1...Rc7!
    • 1.d6?
      • threat
        • 2.Be3#
      • 1...Rxb7
        • 2.Bd2#
      • 1...Rd7
        • 2.Bf4#
      • 1...Sb5
        • 2.Rxb5#
      • 1...Re3
        • 2.Bxe3#
      • 1...Re2!
  • Keys
    • 1.Bd2!
      • threat
        • 2.Bb4#
      • 1...Rxb7
        • 2.d6#
      • 1...Re2
        • 2.Rc7#
      • 1...Sc2
        • 2.Rb5#
      • 1...Sb5
        • 2.Rxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::B(G),XR(c)
    • R(c);N_GUARD::B(G)
    • R(c);N_GUARD,P_PINQ(H)::B(G)
    • S(a);N_GUARD::R1(K)
    • S(a);N_GUARD,XP(D)::R1(K)
    • S(a);N_GUARD::R1(K),XS(a)
  • Tries
    • Try
      • B(G);
      • Threat
        • B(G)
      • Vars
        • S(a);N_GUARD,XP(D)::R1(K)
        • R(c);N_GUARD::R(L)
        • S(a);N_GUARD::R1(K),XS(a)
        • R(c);OGATE::QAR(H)+P(F),XR(c)
        • R(c);N_GUARD::QAR(H)+P(F)
      • Refutation
        • R(c);
    • Try
      • R(L);CHECK
      • Vars
        • K(b);S_FLIGHT::R1(L)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • P(F);
      • Threat
        • QAR(H)+B(G),DCHECK
      • Vars
        • R(c);N_GUARD,XR(K)::QAR(H)+B(G)
        • R(c);N_GUARD::QAR(H)+B(G)
        • S(a);N_GUARD::R1(K),XS(a)
        • R(c);::QAR(H)+B(G),DCHECK,XR(c)
      • Refutation
        • R(c);
  • Actual
    • B(G);
    • Threat
      • B(G)
    • Vars
      • R(c);N_GUARD,XR(K)::QAR(H)+P(F)
      • R(c);N_GUARD::R(K)
      • S(a);N_GUARD::R1(K)
      • S(a);N_GUARD::R1(K),XS(a)
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