MESON Chess Problem Database

Problem Display
PID: 200200 (6Q1/B5qr/1R5p/2R5/4Pp2/3BkN2/1p5P/1Kb1N3 w - - 0 1)

Bakcsi, Gyorgy

Problemas, 1990

6Q1/B5qr/1R5p/2R5/4Pp2/3BkN2/1p5P/1Kb1N3

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qg1#
    • 1...Qd4
      • 2.Qg1#
    • 1...Qe5
      • 2.Qg1#
    • 1...Qf6
      • 2.Qg1#
    • 1...Qf8
      • 2.Qg1#
    • 1...Qh8
      • 2.Qg1#
    • 1...Qg1
      • 2.Qxg1#
    • 1...Qxa7
      • 2.Qg1#
    • 1...Qb7
      • 2.Qg1#
    • 1...Qc7
      • 2.Qg1#
    • 1...Qd7
      • 2.Qg1#
    • 1...Qe7
      • 2.Qg1#
    • 1...Qf7
      • 2.Qg1#
  • Tries
    • 1.Rc2?
      • threat
        • 2.Re2#
      • 1...Qg2
        • 2.Rb7#
      • 1...Bd2!
    • 1.Re5?
      • threat
        • 2.Rb7#
      • 1...Kf2
        • 2.Rxb2#
      • 1...Qxe5
        • 2.Qg1#
      • 1...Qxa7
        • 2.Qg1#
      • 1...Qf6
        • 2.Qg1#
      • 1...Qf8
        • 2.Qg1#
      • 1...Qb7
        • 2.Rxb7#
        • 2.Qg1#
      • 1...Qc7
        • 2.Qg1#
      • 1...Qd7
        • 2.Qg1#
      • 1...Qe7
        • 2.Qg1#
      • 1...Qg6!
    • 1.Rc7?
      • threat
        • 2.Rf6#
      • 1...Kf2
        • 2.Rxb2#
      • 1...Qxc7
        • 2.Qg1#
      • 1...Qc3
        • 2.Qg1#
      • 1...Qd4
        • 2.Qg1#
      • 1...Qe5
        • 2.Qg1#
      • 1...Qf6
        • 2.Rxf6#
        • 2.Qg1#
      • 1...Qf8
        • 2.Rd6#
        • 2.Qg1#
      • 1...Qd7
        • 2.Rd6#
        • 2.Qg1#
      • 1...Qe7
        • 2.Rd6#
        • 2.Qg1#
      • 1...Qg5!
    • 1.Rf6?
      • threat
        • 2.Rc7#
      • 1...Kf2
        • 2.Rc2#
      • 1...Qxf6
        • 2.Qg1#
      • 1...Qxa7
        • 2.Qg1#
      • 1...Qf8
        • 2.Qg1#
      • 1...Qb7
        • 2.Qg1#
      • 1...Qc7
        • 2.Rxc7#
        • 2.Qg1#
      • 1...Qd7
        • 2.Qg1#
      • 1...Qe7
        • 2.Qg1#
      • 1...Qg5!
    • 1.Qxg7?
      • threat
        • 2.Qd4#
        • 2.Qg1#
      • 1...Kf2
        • 2.Qg1#
      • 1...Rxg7!
  • Keys
    • 1.Rb7!
      • threat
        • 2.Re5#
      • 1...Kf2
        • 2.Rc2#
      • 1...Qxb7
        • 2.Qg1#
      • 1...Qc3
        • 2.Rxc3#
        • 2.Qg1#
      • 1...Qd4
        • 2.Qg1#
      • 1...Qe5
        • 2.Rxe5#
        • 2.Qg1#
      • 1...Qf6
        • 2.Qg1#
      • 1...Qf8
        • 2.Qg1#
      • 1...Qg6
        • 2.Rc6#
      • 1...Qc7
        • 2.Rcxc7#
        • 2.Qg1#
      • 1...Qd7
        • 2.Rd5#
        • 2.Qg1#
      • 1...Qe7
        • 2.Qg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • Q(f);OGATE::QAB(J)
    • Q(f);OGATE::QAB(J),XQ(f)
    • Q(f);OGATE,XB(I)::QAB(J)
  • Tries
    • Try
      • R(G);
      • Threat
        • R1(G)
      • Vars
        • Q(f);N_GUARD::B(I)+R(H)
      • Refutation
        • B(a);
    • Try
      • R(G);
      • Threat
        • B(I)+R(H)
      • Vars
        • K(c);S_FLIGHT::B(I)+R(H),DCHECK,XP(b)
        • Q(f);OGATE,XR(G)::QAB(J)
        • Q(f);OGATE,XB(I)::QAB(J)
        • Q(f);OGATE::QAB(J)
      • Refutation
        • Q(f);
    • Try
      • R(G);
      • Threat
        • B(I)+R(H)
      • Vars
        • K(c);S_FLIGHT::B(I)+R(H),DCHECK,XP(b)
        • Q(f);OGATE,XR(G)::QAB(J)
        • Q(f);OGATE::QAB(J)
      • Refutation
        • Q(f);
    • Try
      • R(H);
      • Threat
        • B(I)+R(G)
      • Vars
        • K(c);S_FLIGHT::B(I)+R(G),DCHECK
        • Q(f);OGATE,XR(H)::QAB(J)
        • Q(f);OGATE,XB(I)::QAB(J)
        • Q(f);OGATE::QAB(J)
      • Refutation
        • Q(f);
    • Try
      • Q(J);XQ(f)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);S_FLIGHT::QAB1(J)
      • Refutation
        • R(g);XQ(J)
  • Actual
    • R(H);
    • Threat
      • B(I)+R(G)
    • Vars
      • K(c);S_FLIGHT::B(I)+R(G),DCHECK
      • Q(f);OGATE,XR(H)::QAB(J)
      • Q(f);OGATE::QAB(J)
      • Q(f);N_GUARD::B(I)+R(G)
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