MESON Chess Problem Database

Problem Display
PID: 171054 (3q4/1p3p1Q/6N1/1PRp4/p2k3B/K2Np3/1PP2r2/7B w - - 0 1)

Antonov, Yuri Mikhailovich

Comm., Israel Ring Ty., 1988

3q4/1p3p1Q/6N1/1PRp4/p2k3B/K2Np3/1PP2r2/7B

#2

10 + 8

721 Variantim 1990

SOLUTION

  • SOUND
  • Sets
    • 1...e2
      • 2.Bxf2#
  • Tries
    • 1.Sgf4?
      • threat
        • 2.c3#
      • 1...e2
        • 2.Bxf2#
      • 1...Qa5
        • 2.Bf6#
      • 1...Rxc2!
    • 1.Se7?
      • threat
        • 2.c3#
      • 1...Rxc2
        • 2.Bf6#
      • 1...e2
        • 2.Bxf2#
      • 1...Rf5
        • 2.Sxf5#
      • 1...f5
        • 2.Bf6#
        • 2.Qg7#
      • 1...Qa5!
    • 1.Rxd5+?
      • 1...Kc4
        • 2.Sde5#
        • 2.Sge5#
      • 1...Qxd5!
  • Keys
    • 1.Sge5!
      • threat
        • 2.c3#
      • 1...Rxc2
        • 2.Sf3#
      • 1...e2
        • 2.Bxf2#
      • 1...Qa5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATEB::B(F),XR(a)
  • Tries
    • Try
      • S(I);
      • Threat
        • P(C)
      • Vars
        • P(b);OGATEB::B(F),XR(a)
        • Q(h);N_GUARD::B(F)
      • Refutation
        • R(a);XP(C)
    • Try
      • S(I);
      • Threat
        • P(C)
      • Vars
        • R(a);N_GUARD,XP(C)::B(F)
        • P(b);OGATEB::B(F),XR(a)
        • R(a);N_GUARD::S(I),XR(a)
      • Refutation
        • Q(h);
    • Try
      • R(H);CHECK,XP(e)
      • Refutation
        • Q(h);XR(H)
  • Actual
    • S(I);
    • Threat
      • P(C)
    • Vars
      • R(a);N_GUARD,XP(C)::S(I)
      • P(b);OGATEB::B(F),XR(a)
      • Q(h);N_GUARD::R1(H),XP(e)
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