MESON Chess Problem Database

Problem Display
PID: 271629 (QK4B1/pNB5/3RN3/r6r/1pkb2bR/2P5/2PP4/q7 w - - 0 1)

Caine, Walter Edmund

Sunday Referee, 1933

(First published on Sun Jul 2 1933)

QK4B1/pNB5/3RN3/r6r/1pkb2bR/2P5/2PP4/q7

#2

11 + 8

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rab5
      • 2.Rxd4#
    • 1...Rhb5
      • 2.Rxd4#
  • Keys
    • 1.Rb6!
      • threat
        • 2.Sd6#
      • 1...Kd5
        • 2.Sxa5#
      • 1...Bxe6
        • 2.Rxd4#
      • 1...Rad5
        • 2.Rxb4#
      • 1...Rhd5
        • 2.Rxb4#
      • 1...Bc5
        • 2.Sg5#
      • 1...Be5
        • 2.Sec5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(f);P_PINS(G),SBLOCK::R1(E),XB(d)
    • R(g);P_PINS(G),SBLOCK::R1(E),XB(d)
  • Actual
    • R(E);
    • Threat
      • S(G)
    • Vars
      • K(c);S_CUTQ(a),S_CUTR(g),S_FLIGHT::QAB(I)+S(G),XR(f)
      • B(e);OGATE,P_SPINB(d),XS(F)::R1(D),XB(d)
      • R(f);SBLOCK::R1(E),XP(b)
      • R(g);SBLOCK::R1(E),XP(b)
      • B(d);P_SPINB(e),S_CUTR(f)::B(K)+S(F)
      • B(d);P_PINB(H),P_SPINB(e),S_CUTR(g)::B(K)+S(F)
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