MESON Chess Problem Database

Problem Display
PID: 21607 (K3Nk2/PP2p3/4Q3/8/8/8/8/8 w - - 0 1)

Dawson, Thomas Rayner

Chess Amateur (The), 1920

K3Nk2/PP2p3/4Q3/8/8/8/8/8

#2

5 + 2

15132 Cheltenham Chronicle 1920
2012 Miniature Chess Problems from Many Countries 1981
273 Mat Plus 1995
3310 2345 Chess Problems 1997
2786 More Fun with Chess Miniatures 2000
136 Problem Observer 2008
133 The Problemist Supplement 2009
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe8
      • 2.b8Q#
      • 2.b8R#
  • Tries
    • 1.Qf5+?
      • 1...Kxe8
        • 2.b8Q#
        • 2.b8R#
      • 1...Kg8!
    • 1.Qxe7+?
      • 1...Kg8
        • 2.Qg7#
      • 1...Kxe7!
  • Keys
    • 1.b8S!
      • 1...Kxe8
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,P_SPINP(a),XS(E)::P=Q
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(E)::P=Q
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK,XP(a)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • P(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINP(a),XS(E)::QAR2(A)
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