MESON Chess Problem Database

Problem Display
PID: 271684 (bq6/2p4r/1b6/p4p2/8/6Q1/7P/5K1k w - - 0 1)

Dawson, Thomas Rayner

Sunday Referee, 1933

(First published on Sun Sep 3 1933)

bq6/2p4r/1b6/p4p2/8/6Q1/7P/5K1k

#2

3 + 8

3979 Systematic Terminology 1984
15256 TRD Scrapbook 2014
15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Qxg1#
    • 1...Bg2+
      • 2.Qxg2#
    • 1...c5
      • 2.Qg1#
    • 1...c6
      • 2.Qg2#
  • Keys
    • 1.h4!
      • threat
        • 2.Qh3#
      • 1...Bg2+
        • 2.Qxg2#
      • 1...Rxh4
        • 2.Qxh4#
      • 1...Bg1
        • 2.Qxg1#
      • 1...c5
        • 2.Qg1#
      • 1...c6
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD::QAR1(C),XB(d)
    • B(g);CHECK,N_GUARD::QAB1(C),XB(g)
    • P(e);S_CUTB(d)::QAR1(C)
    • P(e);S_CUTB(g)::QAB1(C)
  • Actual
    • P(B);
    • Threat
      • QAR2(C)
    • Vars
      • B(g);CHECK,N_GUARD::QAB1(C),XB(g)
      • R(f);OGATE,XP(B)::QAR(C),XR(f)
      • B(d);N_GUARD::QAR1(C),XB(d)
      • P(e);S_CUTB(d)::QAR1(C)
      • P(e);S_CUTB(g)::QAB1(C)
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