MESON Chess Problem Database

Problem Display
PID: 81668 (6Rq/2K1N1br/1pBNp2p/R3P3/3k2n1/BPp1p3/4P3/5r2 w - - 0 1)

Clark, Cecil Henry Douglas

The Field, 1952

(First published on Sat Jul 12 1952)

6Rq/2K1N1br/1pBNp2p/R3P3/3k2n1/BPp1p3/4P3/5r2

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe5
      • 2.Ra4#
    • 1...Sxe5
      • 2.Sb5#
    • 1...c2
      • 2.Bb2#
  • Tries
    • 1.Sef5+?
      • 1...exf5
        • 2.Rd5#
      • 1...Rxf5!
    • 1.Rc5?
      • threat
        • 2.Sb5#
      • 1...Bxe5
        • 2.Rc4#
      • 1...b5
        • 2.Sxb5#
      • 1...bxc5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Sc6#
      • 1...Bxe5
        • 2.Ra4#
      • 1...Sxe5
        • 2.Sb5#
      • 1...c2
        • 2.Bb2#
      • 1...Bf6
        • 2.Rxg4#
      • 1...Bf8
        • 2.Rxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(i);P_PINS(G),SBLOCK,XP(E)::R(D)
    • S(e);SBLOCK,XP(E)::S(G)
    • P(b);OGATEB::B(B)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • P(g);XS(I)::R1(D)
      • Refutation
        • R(a);XS(I)
    • Try
      • R(D);
      • Threat
        • S(G)
      • Vars
        • B(i);P_PINS(G),SBLOCK,XP(E)::R1(D)
        • P(f);::S(G),XP(f)
      • Refutation
        • P(f);XR(D)
  • Actual
    • B(F);
    • Threat
      • S(I)
    • Vars
      • B(i);P_PINS(G),SBLOCK,XP(E)::R(D)
      • S(e);SBLOCK,XP(E)::S(G)
      • P(b);OGATEB::B(B)
      • B(i);OGATE,P_PINS(I)::R(J),XS(e)
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Developed and maintained by Brian Stephenson.
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