MESON Chess Problem Database

Problem Display
PID: 149486 (2K1R3/4bQ2/5p2/4Pr1r/3Pk3/4P2B/8/3NN3 w - - 0 1)

Labai, Zoltan

1st Prize, Veliky-65 JT, 2001-2002

2K1R3/4bQ2/5p2/4Pr1r/3Pk3/4P2B/8/3NN3

#2

9 + 5

15174 FIDE Album (2001-2003) 2011
17121 Encyclopedia of Chess Problems (Velimirovic/Valtonen) 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qb7#
    • 1...Bb4
      • 2.Qb7#
    • 1...Bc5
      • 2.Qb7#
    • 1...Bd6
      • 2.Qb7#
    • 1...Bd8
      • 2.Qb7#
    • 1...Bf8
      • 2.Qb7#
  • Tries
    • 1.Rd8?
      • threat
        • 2.Qd5#
      • 1...Bxd8
        • 2.Qb7#
      • 1...Bd6
        • 2.Qb7#
      • 1...Rxe5!
    • 1.Qa2?
      • threat
        • 2.Qa8#
      • 1...Rxe5
        • 2.Qg2#
      • 1...Ba3!
    • 1.Qb3?
      • threat
        • 2.Qb7#
      • 1...Rxe5
        • 2.Sf2#
      • 1...Bb4!
    • 1.Qe6?
      • threat
        • 2.Qc6#
      • 1...Rxe5
        • 2.Bg2#
      • 1...Bd6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qc6#
      • 1...Rxe5
        • 2.d5#
      • 1...Bc5
        • 2.dxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(e);OGATE::QAB(G)
  • Tries
    • Try
      • R(I);
      • Threat
        • QAB1(G)
      • Vars
        • B(e);OGATE,XR(I)::QAB(G)
        • B(e);OGATE::QAB(G)
      • Refutation
        • R(b);XP(F)
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • R(b);N_GUARD,XP(F)::QAB(G)
      • Refutation
        • B(e);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • R(b);N_GUARD,XP(F)::S(A)
      • Refutation
        • B(e);
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • R(b);N_GUARD,P_SPINR(b),XP(F)::B(D)
      • Refutation
        • B(e);
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • R(b);SBLOCK,XP(F)::QAR(G)+P(E)
      • B(e);OGATE::QAR(G)+P(E),XB(e)
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