MESON Chess Problem Database

Problem Display
PID: 203769 (7B/4p3/2p1p2p/2P3bR/3NNkrr/3pR3/3P2pn/K4b2 w - - 0 1)

Clark, Cecil Henry Douglas

Chess Problem Research Pamphlet, 1954

7B/4p3/2p1p2p/2P3bR/3NNkrr/3pR3/3P2pn/K4b2

#2

8 + 12

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2?
      • threat
        • 2.Be5#
      • 1...Sf3
        • 2.Rxf3#
      • 1...e5
        • 2.Bxe5#
      • 1...Bf6!
    • 1.Sxg5?
      • threat
        • 2.Sgxe6#
        • 2.Be5#
      • 1...Rxh5
        • 2.Sgxe6#
      • 1...hxg5
        • 2.Be5#
      • 1...Rg3
        • 2.Re4#
      • 1...Sf3
        • 2.Rxf3#
      • 1...e5
        • 2.Sge6#
        • 2.Bxe5#
      • 1...Rxg5!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Be5#
      • 1...Rg3
        • 2.Re4#
      • 1...Sf3
        • 2.Rxf3#
      • 1...Bf6
        • 2.Sxe6#
      • 1...e5
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • B(H)
      • Vars
        • S(c);N_GUARD::R1(C),XS(c)
        • P(j);::B(H),XP(j)
      • Refutation
        • B(h);P_PINS(D)
    • Try
      • S(E);XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);XR(G)::S(E),XP(j)
        • P(k);XS(E)::B(H)
        • R(f);SBLOCK::R1(C)
        • S(c);N_GUARD::R1(C),XS(c)
      • Refutation
        • R(f);XS(E)
  • Actual
    • S(E);
    • Threat
      • B(H)
    • Vars
      • R(f);SBLOCK::R1(C)
      • S(c);N_GUARD::R1(C),XS(c)
      • B(h);::S(D),XP(j)
      • P(j);::B(H),XP(j)
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