MESON Chess Problem Database

Problem Display
PID: 515 (1R6/8/pB6/r6p/rkB4K/1p1P4/1P6/2R5 w - - 0 1)

Witte, Alberto

The Observer, 1957

1R6/8/pB6/r6p/rkB4K/1p1P4/1P6/2R5

#2

7 + 6

SOLUTION

  • SOUND
  • Keys
    • 1.Bb5!
      • threat
        • 2.Bc5#
      • 1...Kxb5+
        • 2.Bd4#
      • 1...Rxb5
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(D);
    • Threat
      • B(F)
    • Vars
      • K(c);CHECK,OGATEB,P-FLIGHT,XB(D)::R(G)+B(F)
      • R(d);SBLOCK,XB(D)::R1(A)
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