MESON Chess Problem Database

Problem Display
PID: 689 (5R2/1BQ5/2q5/8/bp1k2KR/1P2b3/PNp5/4nnB1 w - - 0 1)

Dawson, Thomas Rayner

1st Prize, British Chess Magazine, 1933/II

5R2/1BQ5/2q5/8/bp1k2KR/1P2b3/PNp5/4nnB1

#2

9 + 8

3098 FIDE Album (1914-1944) (I) 1971
5373 Conquering Kings 2004
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qb5
      • 2.Kh3#
      • 2.Rf4#
    • 1...Qc3
      • 2.Kh3#
      • 2.Kf5#
      • 2.Kh5#
      • 2.Rf4#
      • 2.Qd6#
    • 1...Qa6
      • 2.Kh3#
      • 2.Kf5#
      • 2.Kh5#
      • 2.Rf4#
    • 1...Qb6
      • 2.Kh3#
      • 2.Kf5#
      • 2.Kh5#
      • 2.Rf4#
  • Keys
    • 1.Rd8+!
      • 1...Kc3
        • 2.Sxa4#
      • 1...Ke4
        • 2.Qe7#
      • 1...Kc5
        • 2.Rh5#
      • 1...Qd5
        • 2.Kh3#
      • 1...Qd7+
        • 2.Kh5#
      • 1...Qd6
        • 2.Kf5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Actual
    • R(I);CHECK
    • Vars
      • K(g);N_SPINB(d),P_SPINQ(h),S_FLIGHT::S(C),XB(e)
      • K(g);N_SPINB(d),P-FLIGHT,P_SPINQ(h)::QAR(H)
      • K(g);P_SPINQ(h),S_FLIGHT::R(F)
      • Q(h);P_SPINQ(h)::R(F)+K(E)
      • Q(h);CHECK,P_SPINQ(h)::R(F)+K(E)
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