MESON Chess Problem Database

Problem Display
PID: 97177 (5NBk/8/6R1/K1p5/5p2/p1Pp4/6P1/B3q3 w - - 0 1)

Ceriani, Luigi

Il Problema, 1932

5NBk/8/6R1/K1p5/5p2/p1Pp4/6P1/B3q3

#2

7 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc3+
      • 2.Bxc3#
    • 1...Qg3
      • 2.c4#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Rg8#
      • 1...Qxc3+
        • 2.Bxc3#
      • 1...Qg3
        • 2.c4#
      • 1...Qe6!
    • 1.Be6?
      • threat
        • 2.Rg8#
      • 1...Qxc3+
        • 2.Bxc3#
      • 1...Qg3
        • 2.c4#
      • 1...Qxe6!
    • 1.Bh7?
      • threat
        • 2.Rg8#
      • 1...Qxc3+
        • 2.Bxc3#
      • 1...Qg3
        • 2.c4#
      • 1...Qe6!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Rg8#
      • 1...Qxc3+
        • 2.Bxc3#
      • 1...Qg3
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(a);CHECK,OGATE,P_SPINQ(a),XP(C)::B(A),XQ(a)
    • Q(a);N_PINP(C)::B(A)+P(C)
  • Tries
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • Q(a);CHECK,OGATE,P_SPINQ(a),XP(C)::B(A),XQ(a)
        • Q(a);N_PINP(C)::B(A)+P(C)
      • Refutation
        • Q(a);N_PINP(C)
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • Q(a);CHECK,OGATE,P_SPINQ(a),XP(C)::B(A),XQ(a)
        • Q(a);N_PINP(C)::B(A)+P(C)
      • Refutation
        • Q(a);N_PINP(C),XB(G)
    • Try
      • B(G);
      • Threat
        • R1(E)
      • Vars
        • Q(a);CHECK,OGATE,P_SPINQ(a),XP(C)::B(A),XQ(a)
        • Q(a);N_PINP(C)::B(A)+P(C)
      • Refutation
        • Q(a);N_PINP(C)
  • Actual
    • B(G);
    • Threat
      • R1(E)
    • Vars
      • Q(a);CHECK,OGATE,P_SPINQ(a),XP(C)::B(A),XQ(a)
      • Q(a);N_PINP(C)::B(A)+P(C)
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