MESON Chess Problem Database

Problem Display
PID: 266471 (8/5B1p/5p1P/4PkP1/5B1R/4p2K/4P2P/3R4 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

5th Prize, Mat, 1977

8/5B1p/5p1P/4PkP1/5B1R/4p2K/4P2P/3R4

#2

10 + 4

261 Mat 1980

SOLUTION

  • SOUND
  • Tries
    • 1.Bxe3?
      • 1...Kxe5
        • 2.Rd5#
      • 1...fxe5
        • 2.Rf1#
      • 1...fxg5!
    • 1.Bg3?
      • 1...Kxg5
        • 2.Rh5#
      • 1...fxg5
        • 2.Rf1#
      • 1...fxe5!
  • Keys
    • 1.Rf1!
      • 1...Ke4
        • 2.Bg3#
      • 1...fxe5
        • 2.Bxe3#
      • 1...fxg5
        • 2.Bg3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);XP(a)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(G)::R1(A)
        • P(c);SBLOCK,XP(G)::R(A)
      • Refutation
        • P(c);XP(H)
    • Try
      • B(E);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(H)::R1(F)
        • P(c);SBLOCK,XP(H)::R(A)
      • Refutation
        • P(c);XP(G)
  • Actual
    • R(A);
    • Vars
      • K(b);N_GUARD,S_FLIGHT::R(F)+B(E)
      • P(c);SBLOCK,XP(G)::R(A)+B(E),XP(a)
      • P(c);SBLOCK,XP(H)::R(A)+B(E)
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