MESON Chess Problem Database

Problem Display
PID: 12160 (1Brb2Q1/2r1PPK1/1pbk2p1/2nNn3/1BpP1Np1/3p1p2/4q3/8 w - - 0 1)

ten Cate, Pieter

4th HM., Probleemblad, 1975

1Brb2Q1/2r1PPK1/1pbk2p1/2nNn3/1BpP1Np1/3p1p2/4q3/8

#2

9 + 14

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Tries
    • 1.Bxc5+?
      • 1...Kd7
        • 2.Sxb6#
        • 2.Sf6#
        • 2.Qe8#
        • 2.e8Q#
        • 2.e8B#
      • 1...bxc5!
    • 1.dxc5+?
      • 1...Kd7
        • 2.Qe8#
        • 2.e8Q#
        • 2.e8B#
      • 1...bxc5!
    • 1.f8B?
      • threat
        • 2.Qe6#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bd7
        • 2.exd8S#
      • 1...Sd7
        • 2.e8S#
      • 1...Sf7
        • 2.exd8Q#
        • 2.exd8R#
      • 1...Kd7!
  • Keys
    • 1.f8Q!
      • threat
        • 2.Qe6#
      • 1...Kd7
        • 2.e8Q#
        • 2.e8B#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Bd7
        • 2.exd8S#
      • 1...Sd7
        • 2.e8S#
      • 1...Sf7
        • 2.exd8Q#
        • 2.exd8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK,XS(f)
      • Refutation
        • P(h);XB(A)
    • Try
      • P(B);CHECK,XS(f)
      • Refutation
        • P(h);P_SPINP(h),XP(B)
    • Try
      • P(F);P_SPINP(E)
      • Threat
        • QAR1(I)
      • Vars
        • B(i);OGATE,XS(D)::QAR1(I),XB(i)
        • B(i);N_PINP(E),SBLOCK::PXB(n)=S
        • S(g);N_PINP(E),SBLOCK::P=S
        • S(g);N_PINP(E)::PXB(n)=Q
      • Refutation
        • K(j);N_PINP(E),N_SPINR(l),N_SPINS(f),P-FLIGHT
  • Actual
    • P(F);P_SPINP(E)
    • Threat
      • QAR1(I)
    • Vars
      • K(j);N_PINP(E),N_SPINR(l),N_SPINS(f),P-FLIGHT::P=Q
      • B(i);OGATE,XS(D)::QAR1(I),XB(i)
      • B(i);N_PINP(E),SBLOCK::PXB(n)=S
      • S(g);N_PINP(E),SBLOCK::P=S
      • S(g);N_PINP(E)::PXB(n)=Q
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