MESON Chess Problem Database

Problem Display
PID: 262727 (8/1p2p3/b1p5/8/2P1ppPR/3kPP1Q/B3R3/B4K2 w - - 0 1)

Kapustin, Fedor Mikhailovich

2nd Comm., SuperProblem, 2018

8/1p2p3/b1p5/8/2P1ppPR/3kPP1Q/B3R3/B4K2

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4
      • 2.Bb1#
  • Tries
    • 1.exf4?
      • threat
        • 2.fxe4#
      • 1...exf3
        • 2.Qxf3#
      • 1...e3!
    • 1.fxe4?
      • threat
        • 2.exf4#
      • 1...Kxe4
        • 2.Bb1#
      • 1...fxe3
        • 2.Qxe3#
      • 1...f3!
    • 1.g5?
      • threat
        • 2.Qd7#
      • 1...Bxc4
        • 2.Bb1#
      • 1...exf3
        • 2.Qf5#
      • 1...e6!
  • Keys
    • 1.Rh8!
      • threat
        • 2.Rd8#
      • 1...Bxc4
        • 2.Bb1#
      • 1...exf3
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK,XP(H)::B(C)
  • Tries
    • Try
      • P(E);XP(c)
      • Threat
        • QAR(G)+P(F),XP(b)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(F)::QAR2(G),XP(b)
      • Refutation
        • P(b);
    • Try
      • P(F);XP(b)
      • Threat
        • QAR(G)+P(E),XP(c)
      • Vars
        • K(a);N_GUARD,S_FLIGHT,XP(F)::B(C)
        • P(c);OGATE,P_SPINP(c),XP(E)::QAR1(G),XP(c)
      • Refutation
        • P(c);
    • Try
      • P(I);
      • Threat
        • QAR(G)
      • Vars
        • B(d);SBLOCK,XP(H)::B(C)
        • P(b);OGATEB,XP(F)::QAB(G)
      • Refutation
        • P(g);
  • Actual
    • R(J);
    • Threat
      • R(J)
    • Vars
      • B(d);SBLOCK,XP(H)::B(C)
      • P(b);OGATEB,XP(F)::QAB(G)
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