MESON Chess Problem Database

Problem Display
PID: 187156 (1nK1Q3/3PpP1r/4BNpp/3PkP2/2P1N1P1/8/8/3R1R2 w - - 0 1)

Myllyniemi, Matti Arvo

Suomen Shakki, 1981

1nK1Q3/3PpP1r/4BNpp/3PkP2/2P1N1P1/8/8/3R1R2

#2

13 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...gxf5
      • 2.Rxf5#
  • Tries
    • 1.d6?
      • threat
        • 2.Rd5#
      • 1...exf6
        • 2.Bd5#
      • 1...gxf5!
    • 1.d8Q?
      • threat
        • 2.Qc7#
      • 1...exf6
        • 2.Bd7#
      • 1...Sa6!
    • 1.d8B?
      • threat
        • 2.Bc7#
      • 1...exf6
        • 2.Bd7#
      • 1...Sa6!
    • 1.f8S?
      • threat
        • 2.Sxg6#
      • 1...gxf5
        • 2.Sg6#
        • 2.Rxf5#
      • 1...exf6
        • 2.Bf7#
      • 1...g5
        • 2.Sg6#
      • 1...Rg7!
  • Keys
    • 1.fxg6!
      • threat
        • 2.Rf5#
      • 1...exf6
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(b);OGATE,XP(G)::R1(B),XP(b)
  • Tries
    • Try
      • P(F);
      • Threat
        • R1(A)
      • Vars
        • P(d);OGATEB,XS(I)::QAR(M)+B(H)
      • Refutation
        • P(b);XP(G)
    • Try
      • P(J);
      • Threat
        • QAB(J)
      • Vars
        • P(d);OGATEB,XS(I)::QAR(M)+B(H)
      • Refutation
        • S(f);
    • Try
      • P(J);
      • Threat
        • B(J)
      • Vars
        • P(d);OGATEB,XS(I)::QAR(M)+B(H)
      • Refutation
        • S(f);
    • Try
      • P(K);
      • Threat
        • S(K),XP(b)
      • Vars
        • P(d);OGATEB,XS(I)::QAR(M)+B(H)
        • P(b);::S(K)
      • Refutation
        • R(e);
  • Actual
    • P(G);XP(b)
    • Threat
      • R1(B)
    • Vars
      • P(d);OGATEB,XS(I)::QAR(M)+B(H)
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