MESON Chess Problem Database

Problem Display
PID: 270184 (br6/2pQ4/4Np2/1pR1p3/1P2k3/4nnPP/5BB1/1K6 w - - 0 1)

Davies, AE

Sunday Referee, 1931

(First published on Sun Apr 19 1931)

br6/2pQ4/4Np2/1pR1p3/1P2k3/4nnPP/5BB1/1K6

#2

9 + 9

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Rc4+?
      • 1...Sxc4
        • 2.Sc5#
      • 1...bxc4
        • 2.Sc5#
      • 1...Kf5!
    • 1.Rxe5+?
      • 1...fxe5
        • 2.Sc5#
        • 2.Sg5#
      • 1...Kxe5!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Sc5#
      • 1...Kf5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::S(H)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • S(a);XR(G)::S(H)
        • P(d);P_PINP(F),XR(G)::S(H)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • R(G);CHECK,XP(e)
      • Refutation
        • K(c);N_SPINS(b),P-FLIGHT,XR(G)
  • Actual
    • R(G);
    • Threat
      • S(H)
    • Vars
      • K(c);N_GUARD,N_SPINS(b),S_CUTP(f),S_CUTS(a),S_FLIGHT::QAB(I)
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