MESON Chess Problem Database

Problem Display
PID: 132656 (8/8/2K4P/8/k1p2B1R/2P5/PP6/1N6 w - - 0 1)

Smullyan, Raymond Merrill

The Field, 1957

(First published on Thu Dec 26 1957)

8/8/2K4P/8/k1p2B1R/2P5/PP6/1N6

#2

8 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.b3+?
      • 1...cxb3
        • 2.Bc7#
      • 1...Ka5!
  • Keys
    • 1.b4!
      • 1...cxb4 ep
        • 2.Bc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • P(b);XP(C)::R(F)+B(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Vars
      • P(b);EP,OGATEB,XP(C)::R(F)+B(E)
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