MESON Chess Problem Database

Problem Display
PID: 65563 (4b3/7p/4N2k/R3N1pP/8/8/2R5/1K1B4 w - - 0 1)

Caillaud, Michel

Loustau, Jean-Marc

Rotenberg, Jacques

Sp. Prize, Phenix, 1988

4b3/7p/4N2k/R3N1pP/8/8/2R5/1K1B4

#2

7 + 4

702 Phenix 1990

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Sf7#
    • 1...Bb5
      • 2.Sf7#
    • 1...Bc6
      • 2.Sf7#
    • 1...Bd7
      • 2.Sf7#
    • 1...Bf7
      • 2.Sxf7#
    • 1...g4
      • 2.Sxg4#
  • Keys
    • 1.Rh2!
      • threat
        • 2.Sg4#
      • 1...Bg6+
        • 2.hxg6#
      • 1...Bxh5
        • 2.Rxh5#
      • 1...g4
        • 2.Sxg4#

There are these versions: 35224

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • B(d);N_GUARD::S(E)
    • B(d);N_GUARD::S(E),XB(d)
    • P(a);::S(E),XP(a)
  • Actual
    • R(C);
    • Threat
      • S(E)
    • Vars
      • B(d);CHECK,OGATE::R(C)+P(F),XB(d)
      • B(d);OGATE,P_SPINB(d),XP(F)::R1(C),XB(d)
      • P(a);::S(E),XP(a)
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