MESON Chess Problem Database

Problem Display
PID: 60141 (5b2/1prrn2b/5P2/1Q4p1/4kpP1/1NR1P2n/B1K5/3N1RB1 w - - 0 1)

Caine, Walter Edmund

1st Highly Comm., Brisbane Courier, 1928

5b2/1prrn2b/5P2/1Q4p1/4kpP1/1NR1P2n/B1K5/3N1RB1

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3+
      • 2.Sxc3#
    • 1...Rd2+
      • 2.Sxd2#
    • 1...Sg6
      • 2.Qf5#
  • Tries
    • 1.Rc4+?
      • 1...Rd4
        • 2.Sc3#
        • 2.Sd2#
      • 1...Rxc4+!
  • Keys
    • 1.exf4!
      • threat
        • 2.Qe5#
      • 1...Rxc3+
        • 2.Sxc3#
      • 1...Rd2+
        • 2.Sxd2#
      • 1...Sxf4
        • 2.Sf2#
      • 1...gxf4
        • 2.Re1#
      • 1...Rc5
        • 2.Sxc5#
      • 1...Rd5
        • 2.Qe2#
      • 1...Sd5
        • 2.Sd2#
        • 2.Qd3#
      • 1...Sc6
        • 2.Re3#
      • 1...Sg6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(f);CHECK,XR(G)::S(A),XR(f)
    • R(g);CHECK,N_GUARD::S(F),XR(g)
    • S(h);N_GUARD,S_CUTB(i)::QAB1(J)
  • Tries
    • Try
      • R(G);CHECK
      • Refutation
        • R(f);CHECK,XR(G)
  • Actual
    • P(H);XP(c)
    • Threat
      • QAR1(J)
    • Vars
      • R(f);CHECK,XR(G)::S(A),XR(f)
      • R(g);CHECK,N_GUARD::S(F),XR(g)
      • S(a);N_GUARD,SBLOCK,XP(H)::S(A)
      • P(d);SBLOCK,XP(H)::R(B)
      • R(f);N_GUARD::S(F),XR(f)
      • R(g);SBLOCK::QAR2(J)
      • S(h);N_PINR(G)::R1(G)
      • S(h);N_GUARD,S_CUTB(i)::QAB1(J)
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Developed and maintained by Brian Stephenson.
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