MESON Chess Problem Database

Problem Display
PID: 45935 (1b4RB/2p1pN2/b1P2n2/Qp1p2p1/1PNk4/2pPpK2/2P1P3/8 w - - 0 1)

Bakcsi, Gyorgy

1st Comm., 01. Tungsram Cup, 1978

1b4RB/2p1pN2/b1P2n2/Qp1p2p1/1PNk4/2pPpK2/2P1P3/8

#2

11 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...bxc4
      • 2.Qc5#
    • 1...dxc4
      • 2.Rd8#
    • 1...g4+
      • 2.Rxg4#
  • Tries
    • 1.Scd6?
      • threat
        • 2.Sf5#
      • 1...g4+
        • 2.Rxg4#
      • 1...cxd6
        • 2.Qb6#
      • 1...exd6
        • 2.Bxf6#
      • 1...Bc8
        • 2.Sxb5#
      • 1...e6!
    • 1.Bxf6+?
      • 1...e5
        • 2.Bxe5#
      • 1...exf6!
    • 1.Qxc7?
      • threat
        • 2.Qb6#
      • 1...g4+
        • 2.Rxg4#
      • 1...dxc4
        • 2.Rd8#
      • 1...Ba7
        • 2.Qe5#
        • 2.Qxa7#
      • 1...Bxc7!
  • Keys
    • 1.Sd2!
      • threat
        • 2.Sb3#
      • 1...g4+
        • 2.Rxg4#
      • 1...cxd2
        • 2.Qa1#
      • 1...exd2
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • P(d);OGATE,XS(F)::QAB1(G)
    • P(e);OGATEB,XS(F)::R(J)
    • P(f);CHECK,OGATE::R(J),XP(f)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • P(f);CHECK,OGATE::R(J),XP(f)
        • P(i);N_GUARD,XS(F)::QAB(G)
        • P(j);N_GUARD,XS(F)::B(K),XS(h)
        • B(g);N_GUARD::S(F),XP(d)
      • Refutation
        • P(j);
    • Try
      • B(K);CHECK,XS(h)
      • Vars
        • P(j);P_SPINP(j)::B(K),XP(j)
      • Refutation
        • P(j);XB(K)
    • Try
      • Q(G);XP(i)
      • Threat
        • QAB(G)
      • Vars
        • P(f);CHECK,OGATE::R(J),XP(f)
        • P(e);OGATEB,XS(F)::R(J)
      • Refutation
        • B(k);XQ(G)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • P(f);CHECK,OGATE::R(J),XP(f)
      • P(a);OGATEB,XS(F)::QAB(G)
      • P(b);OGATE,XS(F)::P(B)
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