MESON Chess Problem Database

Problem Display
PID: 207519 (3B4/8/NR1p4/2Ppkppb/3N4/3P1RpB/6P1/5K1Q w - - 0 1)

Martindale, Frank W

Chess Problems - Martindale, FW, 1872

3B4/8/NR1p4/2Ppkppb/3N4/3P1RpB/6P1/5K1Q

#2

11 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Bf6#
    • 1...f4
      • 2.Sc6#
    • 1...dxc5
      • 2.Bf6#
  • Tries
    • 1.Bxf5?
      • threat
        • 2.Sc6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...dxc5
        • 2.Bf6#
      • 1...Be8
        • 2.Qh8#
      • 1...Bxf3!
    • 1.Rxd6?
      • threat
        • 2.Sc6#
        • 2.Bf6#
      • 1...Kxd4
        • 2.Bf6#
      • 1...Be8
        • 2.Bf6#
      • 1...Bxf3!
    • 1.Qg1?
      • threat
        • 2.Rxf5#
        • 2.Qe3#
      • 1...Bg4
        • 2.Qe3#
      • 1...Bg6
        • 2.Qe3#
      • 1...f4
        • 2.Sc6#
      • 1...Bxf3!
  • Keys
    • 1.Bg4!
      • 1...Kxd4
        • 2.Bf6#
      • 1...Bxg4
        • 2.Qh8#
      • 1...fxg4
        • 2.Bf6#
      • 1...dxc5
        • 2.Bf6#
      • 1...Bg6
        • 2.Qh8#
      • 1...Bf7
        • 2.Qh8#
      • 1...Be8
        • 2.Qh8#
      • 1...f4
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XS(G)::B(K)
    • P(d);::S(G)
    • P(g);XP(H)::B(K)
  • Tries
    • Try
      • B(F);XP(d)
      • Threat
        • S(G)
      • Vars
        • K(c);S_FLIGHT,XS(G)::B(K)
        • P(g);XP(H)::B(K)
        • B(f);OGATE::QAB(B)
      • Refutation
        • B(f);XR(E)
    • Try
      • R(J);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT,XS(G)::B(K)
        • B(f);::B(K)
      • Refutation
        • B(f);XR(E)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAR2(B)
        • P(d);::S(G)
      • Refutation
        • B(f);XR(E)
  • Actual
    • B(F);
    • Vars
      • K(c);S_FLIGHT,XS(G)::B(K)
      • B(f);OGATE,XB(F)::QAB(B)
      • P(d);XB(F)::B(K)
      • P(g);XP(H)::B(K)
      • B(f);OGATE::QAB(B)
      • P(d);::S(G)
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