MESON Chess Problem Database

Problem Display
PID: 242745 (2B5/3n1N1K/4kP1N/r1p2pP1/1pPBn3/8/1Q3P2/4R3 w - - 0 1)

Bakcsi, Gyorgy

Shakhmaty (Riga), 1974

2B5/3n1N1K/4kP1N/r1p2pP1/1pPBn3/8/1Q3P2/4R3

#2

11 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Rxe4#
  • Tries
    • 1.Be3?
      • threat
        • 2.Qe5#
      • 1...Sxg5+
        • 2.Bxg5#
      • 1...Sxf6+
        • 2.Qxf6#
      • 1...Sc3!
  • Keys
    • 1.Be5!
      • threat
        • 2.Sd8#
      • 1...Sxg5+
        • 2.Sxg5#
      • 1...Sxf6+
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(e);N_GUARD::R(A),XS(b)
  • Tries
    • Try
      • B(E);N_PINS(b),P_PINS(g)
      • Threat
        • QAR1(B)
      • Vars
        • S(b);CHECK,OGATE,XP(F)::R(A)+B(E),XS(b)
        • S(b);CHECK,OGATE,XP(G)::QAR1(B),XS(b)
      • Refutation
        • S(b);
  • Actual
    • B(E);N_PINS(b),P_PINS(g)
    • Threat
      • S(I)
    • Vars
      • S(b);CHECK,XP(F)::S(I),XS(b)
      • S(b);CHECK,OGATE,XP(G)::R(A)+B(E),XS(b)
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