MESON Chess Problem Database

Problem Display
PID: 262022 (2N1K1N1/1p2P2p/1Rn1k1nR/p2pBp2/P2P1P2/4P3/8/4Q3 w - - 0 1)

Lipton, Michael

HM., Castellari Festival (Boletim da UBP), 1964

2N1K1N1/1p2P2p/1Rn1k1nR/p2pBp2/P2P1P2/4P3/8/4Q3

#2

12 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bd6?
      • 1...Sxd4
        • 2.exd4#
      • 1...Sxe7
        • 2.Bxe7#
      • 1...Sb4
        • 2.Bxb4#
      • 1...Se5
        • 2.Bxe5#
      • 1...Sb8
        • 2.Bxb8#
      • 1...Sd8
        • 2.exd8S#
      • 1...Sa7!
  • Keys
    • 1.Bf6!
      • 1...Sxf4
        • 2.exf4#
      • 1...Sxe7
        • 2.Bxe7#
      • 1...Sh4
        • 2.Bxh4#
      • 1...Se5
        • 2.Bxe5#
      • 1...Sf8
        • 2.exf8S#
      • 1...Sh8
        • 2.Bxh8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(F);N_PINS(d),P_PINS(f)
      • Vars
        • S(d);OGATE,XP(D)::QAR(A)+P(B),XS(d)
        • S(d);OGATE,XP(I)::R(G)+B(F),XS(d)
        • S(d);OGATEB::R(G)+B(F),XS(d)
        • S(d);OGATE::PXS(d)=S
      • Refutation
        • S(d);
  • Actual
    • B(F);
    • Vars
      • S(f);OGATE,XP(E)::QAR(A)+P(B),XS(f)
      • S(f);OGATE,XP(I)::R(H)+B(F),XS(f)
      • S(f);OGATEB::R(H)+B(F),XS(f)
      • S(f);OGATE::PXS(f)=S
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