MESON Chess Problem Database

Problem Display
PID: 134424 (4B3/4p1NR/3nqkPN/QR2p2P/5PpP/8/p6b/K7 w - - 0 1)

Labai, Zoltan

Taraba, Jozef

2nd Comm., Sachova skladba, 1991

4B3/4p1NR/3nqkPN/QR2p2P/5PpP/8/p6b/K7

#2

11 + 8

14580 Chess Compositions (Taraba) 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb3
      • 2.Sxg4#
    • 1...Qc4
      • 2.Sxg4#
    • 1...Qd5
      • 2.Sxg4#
    • 1...Qf5
      • 2.Sg8#
    • 1...Qd7
      • 2.Sg8#
    • 1...Qf7
      • 2.Sxg4#
    • 1...Qc8
      • 2.Sg8#
    • 1...Qg8
      • 2.Sxg4#
      • 2.Sxg8#
    • 1...Sf5
      • 2.Sxg4#
    • 1...Sf7
      • 2.Sg8#
    • 1...Sxe8
      • 2.Sxe8#
  • Tries
    • 1.Bf7?
      • threat
        • 2.Sg8#
      • 1...Qxf7
        • 2.Sxg4#
      • 1...Qc8!
    • 1.f5?
      • threat
        • 2.Sxg4#
      • 1...Qxf5
        • 2.Sg8#
      • 1...g3
        • 2.Sg4#
      • 1...Qc4!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Rxe6#
      • 1...Qxe5+
        • 2.Qxe5#
      • 1...Qb3
        • 2.Sxg4#
      • 1...Qc4
        • 2.Sxg4#
      • 1...Qd5
        • 2.Sxg4#
      • 1...Qf5
        • 2.Sg8#
      • 1...Qd7
        • 2.Sg8#
      • 1...Qf7
        • 2.Sxg4#
      • 1...Qc8
        • 2.Sg8#
      • 1...Qg8
        • 2.Sxg4#
        • 2.Sxg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(f);N_GUARD::S(H),XP(c)
    • Q(f);N_GUARD::S(H)
    • S(e);S_CUTQ(f)::S(H),XP(c)
    • S(e);S_CUTQ(f)::S(H)
    • S(e);XB(K)::S(I),XS(e)
  • Tries
    • Try
      • B(K);
      • Threat
        • S(H)
      • Vars
        • Q(f);N_GUARD,XB(K)::S(H),XP(c)
      • Refutation
        • Q(f);
    • Try
      • P(B);
      • Threat
        • S(H),XP(c)
      • Vars
        • Q(f);N_GUARD,XP(B)::S(H)
        • P(c);::S(H)
      • Refutation
        • Q(f);
  • Actual
    • R(E);XP(d)
    • Threat
      • R1(E),XQ(f)
    • Vars
      • Q(f);CHECK,OGATE,XR(E)::QAB1(D),XQ(f)
      • Q(f);N_GUARD::S(H),XP(c)
      • Q(f);N_GUARD::S(H)
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