MESON Chess Problem Database

Problem Display
PID: 203772 (2R5/1p1Q3p/2bpN3/np1kN3/7b/2P1RPpK/8/5B2 w - - 0 1)

Clark, Cecil Henry Douglas

Chess Problem Research Pamphlet, 1954

2R5/1p1Q3p/2bpN3/np1kN3/7b/2P1RPpK/8/5B2

#2

9 + 9

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Sb4#
        • 2.Sdf4#
      • 1...Bg5
        • 2.Sb4#
      • 1...b4
        • 2.Sxb4#
        • 2.Sdf4#
      • 1...Kc4!
    • 1.Sg6?
      • threat
        • 2.Sgf4#
        • 2.Re5#
      • 1...Bxd7
        • 2.Sf4#
      • 1...Bg5
        • 2.Re5#
      • 1...Bf6
        • 2.Sgf4#
      • 1...Sc4
        • 2.Sgf4#
        • 2.Rd3#
      • 1...hxg6!
    • 1.Sf7?
      • threat
        • 2.Re5#
        • 2.Qxd6#
      • 1...Bf6
        • 2.Qxd6#
      • 1...Be7
        • 2.Re5#
      • 1...Sc4
        • 2.Rd3#
      • 1...Bxd7!
    • 1.f4?
      • threat
        • 2.Bg2#
      • 1...g2
        • 2.Bxg2#
      • 1...Bxd7!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Re5#
      • 1...Bxd7
        • 2.Sf4#
      • 1...Bf6
        • 2.Sxf6#
      • 1...Sc4
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::S(F)
      • Refutation
        • K(e);N_SPINP(g),P_SPINB(f),S_FLIGHT
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);N_SPINP(g),P_PINS(G),XQ(H)::S(F)
        • B(b);::R1(C)
        • B(b);::S(F)
      • Refutation
        • P(i);XS(F)
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAR1(H),XP(g)
        • B(b);::R1(C)
        • S(c);SBLOCK::R(C)
      • Refutation
        • B(f);N_SPINP(g),P_PINS(G),XQ(H)
    • Try
      • P(D);
      • Threat
        • B(A)
      • Vars
        • P(a);::B(A),XP(a)
      • Refutation
        • B(f);N_SPINP(g),P_PINS(G),XQ(H)
  • Actual
    • S(F);
    • Threat
      • R1(C)
    • Vars
      • B(f);N_SPINP(g),XQ(H)::S(G)
      • B(b);N_GUARD::S(F),XB(b)
      • S(c);SBLOCK::R(C)
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