MESON Chess Problem Database

Problem Display
PID: 41275 (8/8/6p1/2P3Pp/1B3p1k/R5R1/6P1/3B2K1 w - - 0 1)

Petite, Efren

Probleemblad, 2002

8/8/6p1/2P3Pp/1B3p1k/R5R1/6P1/3B2K1

#2

8 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bf3?
      • 1...Kxg3
        • 2.Be1#
      • 1...fxg3!
    • 1.Be1?
      • threat
        • 2.Rg4#
      • 1...f3
        • 2.Ra4#
      • 1...fxg3!
    • 1.Bd2?
      • 1...fxg3
        • 2.Ra4#
      • 1...f3!
  • Keys
    • 1.Ra4!
      • 1...Kxg3
        • 2.Be1#
      • 1...fxg3
        • 2.Bd2#
      • 1...f3
        • 2.Be1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(E)::B(F)
      • Refutation
        • P(a);XR(E)
    • Try
      • B(F);
      • Threat
        • B(F)+R(E),DCHECK
      • Vars
        • P(a);OGATEB::R(D)
      • Refutation
        • P(a);P_SPINP(a),XR(E)
    • Try
      • B(F);
      • Vars
        • P(a);OGATEB,SBLOCK,XR(E)::R(D)
      • Refutation
        • P(a);
  • Actual
    • R(D);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(E)::B(F)
      • P(a);OGATEB,SBLOCK,XR(E)::R(D)+B(F)
      • P(a);OGATEB::R(D)+B(F)
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