MESON Chess Problem Database

Problem Display
PID: 177538 (KN6/7p/1p5r/pk6/2R5/8/8/5B2 w - - 0 1)

Jonsson, Christer

Postsjakk, 1963

KN6/7p/1p5r/pk6/2R5/8/8/5B2

#2

4 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Sa6!
      • threat
        • 2.Sc7#
      • 1...Kxa6
        • 2.Rc6#
      • 1...a4
        • 2.Rc5#
      • 1...Rc6
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(b);S_FLIGHT,XS(D)::B(A)+R(B)
      • P(a);SBLOCK::B(A)+R(B),DCHECK
      • R(d);SBLOCK::B(A)+R(B),DCHECK
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