MESON Chess Problem Database

Problem Display
PID: 245004 (K2B4/3p4/2pk1q1R/7n/1PB3NQ/R2Nb3/n7/5r2 w - - 0 1)

Bakcsi, Gyorgy

Scacchi e Scienze Applicate, 1988

K2B4/3p4/2pk1q1R/7n/1PB3NQ/R2Nb3/n7/5r2

#2

9 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Qe7#
    • 1...Qg6
      • 2.Qe7#
    • 1...Qxh6
      • 2.Qe7#
    • 1...Bc5
      • 2.bxc5#
    • 1...c5
      • 2.Ra6#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Se4#
        • 2.Sb7#
      • 1...Rf4
        • 2.Sb7#
      • 1...Sc3
        • 2.Sb7#
      • 1...Sg3
        • 2.Sb7#
      • 1...Bxc5!
    • 1.Sde5?
      • threat
        • 2.Sf7#
      • 1...Qxh6
        • 2.Qe7#
      • 1...Bxh6
        • 2.Rd3#
      • 1...Qe6
        • 2.Qe7#
      • 1...Qg6
        • 2.Qe7#
      • 1...c5
        • 2.Ra6#
      • 1...Sxb4!
  • Keys
    • 1.Sge5!
      • threat
        • 2.Sf7#
      • 1...Qxh6
        • 2.Qe7#
      • 1...Bxh6
        • 2.Qd4#
      • 1...Qe6
        • 2.Qe7#
      • 1...Qg6
        • 2.Qe7#
      • 1...c5
        • 2.Ra6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(g);OGATE::QAB1(F)
    • Q(g);N_SPINQ(g),OGATE,XR(G)::QAB1(F)
    • B(c);OGATE::P(C),XB(c)
    • P(e);OGATEB::R(A)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);::S(B)
        • S(b);::S(B)
        • S(d);::S(B)
      • Refutation
        • B(c);XS(B)
    • Try
      • S(B);
      • Threat
        • S(B)
      • Vars
        • Q(g);N_SPINQ(g),OGATE,XR(G)::QAB1(F)
        • B(c);N_GUARD,N_SPINQ(g),XR(G)::R(A)
        • Q(g);OGATE::QAB1(F)
        • P(e);OGATEB::R(A)
      • Refutation
        • S(b);XP(C)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • Q(g);N_SPINQ(g),OGATE,XR(G)::QAB1(F)
      • B(c);N_GUARD,N_SPINQ(g),XR(G)::QAR2(F)
      • Q(g);OGATE::QAB1(F)
      • P(e);OGATEB::R(A)
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