MESON Chess Problem Database

Problem Display
PID: 55891 (3r2QB/3n4/2B2q2/1p1Pn2R/1P1k3P/1P1P1p2/N4P2/2R1N2K w - - 0 1)

Bakcsi, Gyorgy

1st Prize, Magyar Sakkelet, 1962

3r2QB/3n4/2B2q2/1p1Pn2R/1P1k3P/1P1P1p2/N4P2/2R1N2K

#2

14 + 7

3747 FIDE Album (1962-1964) 1968
56 The Problemist 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh4+
      • 2.Rxh4#
    • 1...Qe7
      • 2.Qg4#
    • 1...Qd6
      • 2.Qg4#
    • 1...Sc4
      • 2.Qg4#
    • 1...Sg4
      • 2.Qxg4#
    • 1...Sxc6
      • 2.Qg4#
    • 1...Sf7
      • 2.Qg4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sxb5#
      • 1...Qxh4+
        • 2.Rxh4#
      • 1...Qxc6
        • 2.Qg4#
      • 1...Sxd3
        • 2.Sxf3#
      • 1...Rb8!
    • 1.Rc3?
      • threat
        • 2.Sc2#
      • 1...Qxh4+
        • 2.Rxh4#
      • 1...Sxd3!
    • 1.Rc4+?
      • 1...Sxc4
        • 2.Qg4#
      • 1...bxc4!
    • 1.Qg4+?
      • 1...Qf4
        • 2.Qxf4#
      • 1...Sxg4!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sc2#
      • 1...Qxh4+
        • 2.Rxh4#
      • 1...Qxc6
        • 2.Sxf3#
      • 1...Sxd3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(e);CHECK,OGATE,P_SPINS(d),XP(I)::R(K),XQ(e)
    • Q(e);N_GUARD,P_SPINS(d)::QAR(M)
    • S(d);N_GUARD,P_SPINQ(e)::QAR(M)
    • S(d);N_GUARD,P_SPINQ(e)::QAR(M),XS(d)
    • S(d);N_GUARD,P_SPINQ(e),XB(L)::QAR(M)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D),XP(c)
      • Vars
        • Q(e);CHECK,OGATE,P_SPINS(d),XP(I)::R(K),XQ(e)
        • Q(e);N_GUARD,P_SPINS(d),XB(L)::QAR(M)
        • S(d);N_GUARD,P_SPINQ(e),SBLOCK,XP(G)::S(B),XP(a)
      • Refutation
        • R(g);
    • Try
      • R(A);
      • Threat
        • S(B)
      • Vars
        • Q(e);CHECK,OGATE,P_SPINS(d),XP(I)::R(K),XQ(e)
      • Refutation
        • S(d);P_SPINQ(e),XP(G)
    • Try
      • R(A);CHECK
      • Vars
        • S(d);P_SPINQ(e),XR(A)::QAR(M)
      • Refutation
        • P(c);XR(A)
    • Try
      • Q(M);CHECK
      • Vars
        • Q(e);N_GUARD,P_SPINQ(e),P_SPINS(d)::QAR2(M),XQ(e)
      • Refutation
        • S(d);P_SPINQ(e),XQ(M)
  • Actual
    • R(A);
    • Threat
      • S(B)
    • Vars
      • Q(e);CHECK,OGATE,P_SPINS(d),XP(I)::R(K),XQ(e)
      • Q(e);N_GUARD,P_SPINS(d),XB(L)::S(B),XP(a)
      • S(d);N_GUARD,P_SPINQ(e),P_SPINS(d),XP(G)::QAR(M)
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