MESON Chess Problem Database

Problem Display
PID: 181226 (B7/1P1PNPP1/3k4/5n1R/K2p4/3Nb3/1Q6/B3R3 w - - 0 1)

van Dooren, Rene

Volksgazet, 1975

B7/1P1PNPP1/3k4/5n1R/K2p4/3Nb3/1Q6/B3R3

#2

12 + 4

15611 Schaak-composities 1975-1979 (de Vuyst) 1982

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.d8Q#
    • 1...Bg1
      • 2.d8Q#
    • 1...Bd2
      • 2.d8Q#
    • 1...Bf2
      • 2.d8Q#
    • 1...Bf4
      • 2.d8Q#
    • 1...Bg5
      • 2.d8Q#
    • 1...Bh6
      • 2.d8Q#
  • Tries
    • 1.f8S?
      • threat
        • 2.d8Q#
      • 1...Kc7
        • 2.b8Q#
      • 1...Sxe7
        • 2.b8Q#
        • 2.b8B#
      • 1...Kxe7!
  • Keys
    • 1.Sc5!
      • 1...Kxc5
        • 2.Qb4#
      • 1...Ke5
        • 2.Qxd4#
      • 1...Kc7
        • 2.b8Q#
      • 1...Kxe7
        • 2.f8Q#
      • 1...Sxe7
        • 2.b8Q#
        • 2.b8B#
      • 1...Sxg7
        • 2.d8Q#
      • 1...Bc1
        • 2.Qb6#
      • 1...Bg1
        • 2.Qb6#
      • 1...Bd2
        • 2.Qb6#
      • 1...Bf2
        • 2.Qb6#
      • 1...Bf4
        • 2.Qb6#
      • 1...Bg5
        • 2.Qb6#
      • 1...Bh6
        • 2.Qb6#
      • 1...Sg3
        • 2.d8Q#
      • 1...Sh4
        • 2.d8Q#
      • 1...Sh6
        • 2.d8Q#
      • 1...d3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 7
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • B(a);::P=Q
  • Tries
    • Try
      • P(J);
      • Threat
        • P=Q
      • Vars
        • K(d);S_FLIGHT::P=Q
        • S(c);SBLOCK,XS(I)::P=Q
      • Refutation
        • K(d);P_SPINB(a),S_FLIGHT,XS(I)
  • Actual
    • S(D);
    • Vars
      • K(d);OGATEB,P_SPINS(c),S_FLIGHT,XS(D)::QAB1(C)
      • K(d);P_SPINB(a),P_SPINP(b),P_SPINS(c),S_FLIGHT::QAB1(C),XP(b)
      • K(d);S_FLIGHT::P=Q
      • K(d);P_SPINB(a),S_FLIGHT,XS(I)::P=Q
      • S(c);SBLOCK,XS(I)::P=Q
      • S(c);XP(K)::P=Q
      • B(a);::QAR2(C)
      • S(c);::P=Q
      • P(b);OGATE::QAB1(C)
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