MESON Chess Problem Database

Problem Display
PID: 185363 (1KbR1Rn1/6Q1/1p1P1q2/1p6/3k1b2/1P1Np3/4P3/3N2BB w - - 0 1)

Baudoin, Jean-Francois

diagrammes, 1974

1KbR1Rn1/6Q1/1p1P1q2/1p6/3k1b2/1P1Np3/4P3/3N2BB

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Rxf4#
    • 1...Qxg7
      • 2.Rxf4#
    • 1...Bh2
      • 2.Bxe3#
    • 1...Bg3
      • 2.Bxe3#
    • 1...Be5
      • 2.Bxe3#
    • 1...Bxd6+
      • 2.Rxd6#
  • Tries
    • 1.Qxf6+?
      • 1...Be5
        • 2.Bxe3#
        • 2.Qxe5#
      • 1...Sxf6!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxb6#
        • 2.Qc3#
      • 1...Qxd8
        • 2.Rxf4#
        • 2.Qc3#
      • 1...Qxd6
        • 2.Rxf4#
      • 1...Bxd6
        • 2.Bxe3#
      • 1...Qe5
        • 2.Qc3#
      • 1...Qg5
        • 2.Qc3#
      • 1...Qf5
        • 2.Qc3#
      • 1...b4
        • 2.Qxb6#
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(f);OGATE::R(K),XB(c)
    • Q(f);N_SPINQ(f),OGATE,XQ(H)::R(K),XB(c)
    • B(c);N_GUARD::B(B),XP(a)
    • B(c);N_GUARD,N_SPINQ(f)::B(B),XP(a)
    • B(c);CHECK,OGATE,P_SPINB(c),XP(G)::R(J),XB(c)
  • Tries
    • Try
      • Q(H);CHECK,XQ(f)
      • Refutation
        • S(h);XQ(H)
  • Actual
    • Q(H);N_PINQ(f),N_SPINP(G)
    • Threat
      • DUALS(2)
    • Vars
      • Q(f);OGATE,P_PINQ(H),P_SPINQ(f),XP(G)::R(K),XB(c)
      • B(c);N_GUARD,P_PINQ(H),P_SPINB(c),XP(G)::B(B),XP(a)
      • Q(f);::QAB1(H)
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