MESON Chess Problem Database

Problem Display
PID: 270676 (5r2/p5pN/K3kPP1/Q1PR4/3r1p2/B2N1B2/4q3/3bR1b1 w - - 0 1)

Caine, Walter Edmund

Eddy, Edwin John

2nd HM., Sunday Referee, 1932

(First published on Sun Feb 7 1932)

5r2/p5pN/K3kPP1/Q1PR4/3r1p2/B2N1B2/4q3/3bR1b1

#2

11 + 9

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Sxf4#
    • 1...Qe5
      • 2.Rexe5#
  • Keys
    • 1.c6!
      • threat
        • 2.Bg4#
      • 1...Qxe1
        • 2.Sc5#
      • 1...Rxd5
        • 2.Qxd5#
      • 1...Rxf6
        • 2.Sg5#
      • 1...gxf6
        • 2.Sxf8#
      • 1...Qe5
        • 2.Rexe5#
        • 2.Rdxe5#
      • 1...Qe3
        • 2.Sc5#
      • 1...Qe4
        • 2.Sxf4#
      • 1...Re4
        • 2.Rd6#
      • 1...Be3
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_PINS(C)::S(C),XP(e)
    • Q(c);N_PINS(C),OGATE::R1(A),XQ(c)
  • Actual
    • P(F);
    • Threat
      • B(D)
    • Vars
      • Q(c);N_PINS(C),N_SPINQ(c),XR(A)::S(C)
      • R(d);OGATE,XR(G)::QAB1(E),XR(d)
      • R(i);SBLOCK,XP(I)::S(K)
      • P(h);SBLOCK,XP(I)::S(K),XR(i)
      • Q(c);N_PINS(C)::S(C)
      • Q(c);N_PINS(C)::S(C),XP(e)
      • R(d);N_GUARD,N_SPINQ(c)::R1(G)
      • B(b);N_SPINQ(c),S_CUTQ(c)::R1(G)
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