MESON Chess Problem Database

Problem Display
PID: 148067 (b3K1B1/8/4R3/1p1R4/ppkN4/2prn3/8/1Q4B1 w - - 0 1)

Caine, Walter Edmund

Morning Post, 1932

(First published on Sat Oct 15 1932)

b3K1B1/8/4R3/1p1R4/ppkN4/2prn3/8/1Q4B1

#2

7 + 8

14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6+
      • 2.Rxc6#
    • 1...a3
      • 2.Qb3#
  • Tries
    • 1.Rc5+?
      • 1...Kxd4
        • 2.Qxb4#
      • 1...Kxc5!
    • 1.Qxd3+?
      • 1...Kxd5
        • 2.Sb3#
      • 1...Kxd3!
    • 1.Qxb4+?
      • 1...Kxd5
        • 2.Rxe3#
        • 2.Re7#
      • 1...Kxb4!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Rc5#
      • 1...Bc6+
        • 2.Rxc6#
      • 1...Kxd5
        • 2.Qxd3#
      • 1...Rxd5
        • 2.Re4#
      • 1...Bxd5
        • 2.Rc6#
      • 1...Sxd5
        • 2.Sa5#
      • 1...axb3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(h);CHECK,N_GUARD::R(E),XB(h)
    • P(d);N_GUARD::QAB1(A)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(f);P-FLIGHT,P_SPINS(c),XS(C)::QAR2(A),XP(e)
      • Refutation
        • K(f);P-FLIGHT,XR(D)
    • Try
      • Q(A);CHECK,XR(b)
      • Vars
        • K(f);S_FLIGHT,XR(D)::QAR(A)+S(C)
      • Refutation
        • K(f);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK,XP(e)
      • Refutation
        • K(f);P-FLIGHT,XQ(A)
  • Actual
    • S(C);
    • Threat
      • R1(D)
    • Vars
      • B(h);CHECK,N_GUARD::R(E),XB(h)
      • K(f);S_FLIGHT,XR(D)::QAR2(A),XR(b)
      • R(b);N_GUARD,XR(D)::R(E)
      • B(h);N_GUARD,XR(D)::R(E)
      • S(c);SBLOCK,XR(D)::S(C)
      • P(d);SBLOCK,XS(C)::QAB1(A),XR(b)
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