MESON Chess Problem Database

Problem Display
PID: 22332 (8/7K/1p4P1/1Q1P1P1k/4BP1n/5P2/8/4B3 w - - 0 1)

Mlynka, Karol

1st Prize, Hlas l'udu, 1980

8/7K/1p4P1/1Q1P1P1k/4BP1n/5P2/8/4B3

#2

9 + 3

6424 Czech Album (1979-1981) 1986

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf3
      • 2.Bxf3#
  • Tries
    • 1.Qe8?
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.g7#
      • 1...Sxg6
        • 2.Qxg6#
      • 1...Sg2
        • 2.g7#
      • 1...b5!
    • 1.f6?
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxg6
        • 2.Bxg6#
      • 1...Sg2
        • 2.d6#
      • 1...Sf5!
    • 1.g7?
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.Qe8#
      • 1...Sg2
        • 2.Qe8#
      • 1...Sg6!
  • Keys
    • 1.d6!
      • 1...Sxf3
        • 2.Bxf3#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...Sxg6
        • 2.fxg6#
      • 1...Sg2
        • 2.f6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE,XP(B)::B(C),XS(a)
  • Tries
    • Try
      • Q(E);
      • Vars
        • S(a);OGATE,XP(B)::B(C),XS(a)
        • S(a);N_GUARD,XP(G)::QAB(E)+P(H)
        • S(a);OGATE,P_SPINS(a),XP(H)::QAB1(E),XS(a)
        • S(a);N_GUARD::QAB(E)+P(H)
      • Refutation
        • P(c);
    • Try
      • P(G);
      • Vars
        • S(a);OGATE,XP(B)::B(C),XS(a)
        • S(a);OGATE,XP(H)::B(C),XS(a)
        • S(a);N_GUARD::QAR(E)+P(F)
      • Refutation
        • S(a);
    • Try
      • P(H);
      • Vars
        • S(a);OGATE,XP(B)::B(C),XS(a)
        • S(a);N_GUARD,XP(G)::QAB(E)
        • S(a);N_GUARD::QAB(E)
      • Refutation
        • S(a);
  • Actual
    • P(F);
    • Vars
      • S(a);OGATE,XP(B)::B(C),XS(a)
      • S(a);OGATE,P_SPINS(a),XP(G)::QAR2(E),XS(a)
      • S(a);OGATE,XP(H)::QAR(E)+P(G),XS(a)
      • S(a);N_GUARD::QAR(E)+P(G)
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