MESON Chess Problem Database

Problem Display
PID: 41175 (3R4/1pprp3/3k4/2r2Q1K/b7/B1P2p2/8/8 w - - 0 1)

Caine, Walter Edmund

Eddy, Edwin John

British Chess Magazine, 1933

3R4/1pprp3/3k4/2r2Q1K/b7/B1P2p2/8/8

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qxc5#
    • 1...Bc6
      • 2.Bxc5#
    • 1...c6
      • 2.Rxd7#
    • 1...e6
      • 2.Qxc5#
  • Tries
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qxc5#
      • 1...Kxe5!
  • Keys
    • 1.c4!
      • threat
        • 2.Qd5#
      • 1...Kc6
        • 2.Qxc5#
      • 1...e5
        • 2.Qf6#
      • 1...e6
        • 2.Qxc5#
      • 1...Bc6
        • 2.Bxc5#
      • 1...c6
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINR(c),P-FLIGHT::QAR1(C),XR(c)
    • B(b);SBLOCK::B(A),XR(c)
    • P(f);SBLOCK,S_CUTB(b)::R1(E),XR(g)
    • P(h);SBLOCK::QAB1(C),XR(c)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(d);N_SPINR(c),P-FLIGHT::QAR1(C),XR(c)
      • Refutation
        • K(d);N_SPINR(c),S_FLIGHT,XQ(C)
  • Actual
    • P(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(d);N_SPINR(c),P-FLIGHT::QAR1(C),XR(c)
      • P(h);N_PINQ(C)::QAR2(C)
      • P(h);SBLOCK::QAB1(C),XR(c)
      • B(b);SBLOCK::B(A),XR(c)
      • P(f);SBLOCK,S_CUTB(b)::R1(E),XR(g)
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