MESON Chess Problem Database

Problem Display
PID: 152870 (8/6KQ/R1p2P2/1NP2RP1/2B1k1n1/1p4P1/1pb5/4nN2 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1942

8/6KQ/R1p2P2/1NP2RP1/2B1k1n1/1p4P1/1pb5/4nN2

#2

11 + 7

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Rd5#
    • 1...Se3
      • 2.Sd2#
    • 1...Se5
      • 2.Rf4#
  • Tries
    • 1.Bd5+?
      • 1...Kd3
        • 2.Rf2#
        • 2.Re5#
      • 1...cxd5!
  • Keys
    • 1.Ra4!
      • threat
        • 2.Be2#
      • 1...cxb5
        • 2.Bxb5#
      • 1...Bd3
        • 2.Bd5#
      • 1...Sd3
        • 2.Bd5#
      • 1...Sf3
        • 2.Rd5#
      • 1...Se3
        • 2.Sd2#
      • 1...Se5
        • 2.Rf4#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::QAB(K)+R(F)
    • S(f);SBLOCK::S(A)
    • S(f);SBLOCK::QAB(K)+R(F),DCHECK
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • P(g);XB(C)
  • Actual
    • R(H);
    • Threat
      • R(H)+B(C)
    • Vars
      • P(g);OGATE,XS(D)::R(H)+B(C),XP(g)
      • B(c);SBLOCK::R(H)+B(C),DCHECK
      • S(a);SBLOCK::R(H)+B(C),DCHECK
      • S(a);SBLOCK::QAB(K)+R(F)
      • S(f);SBLOCK::S(A)
      • S(f);SBLOCK::QAB(K)+R(F),DCHECK
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