MESON Chess Problem Database

Problem Display
PID: 88188 (nR3B2/Pr2p2K/1kN1Pp2/1P3N2/2PP4/8/8/8 w - - 0 1)

Balashov, Evgeny Fedorovich

Uralski Problemist, 1999

nR3B2/Pr2p2K/1kN1Pp2/1P3N2/2PP4/8/8/8

#2

10 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb8
      • 2.axb8Q#
  • Tries
    • 1.Sfxe7?
      • 1...Kc7
        • 2.Sd5#
      • 1...Rxb8
        • 2.axb8Q#
      • 1...Sc7
        • 2.Sc8#
      • 1...f5!
  • Keys
    • 1.Bxe7!
      • 1...Kc7
        • 2.Bd8#
      • 1...Rxb8
        • 2.axb8Q#
      • 1...Sc7
        • 2.Bc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);N_SPINR(c),OGATE,XR(I)::PXR(c)=Q
  • Tries
    • Try
      • S(D);P_SPINS(D),XP(d)
      • Vars
        • K(a);N_PINS(D),N_SPINR(c),S_FLIGHT::S(D)
        • R(c);N_PINS(D),N_SPINR(c),OGATE,XR(I)::PXR(c)=Q
        • S(e);N_PINS(D),SBLOCK::S(D)
      • Refutation
        • P(b);
  • Actual
    • B(J);P_SPINB(J),XP(d)
    • Vars
      • K(a);N_PINB(J),N_SPINR(c),S_FLIGHT::B(J)
      • R(c);N_PINB(J),N_SPINR(c),OGATE,XR(I)::PXR(c)=Q
      • S(e);N_PINB(J),SBLOCK::B(J)
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