MESON Chess Problem Database

Problem Display
PID: 16346 (3K2B1/6Pn/3k2pB/1Ppp1p1R/2rp1p2/N4N2/1Q2P3/2b5 w - - 0 1)

Morris, DH

Chess, 1940

3K2B1/6Pn/3k2pB/1Ppp1p1R/2rp1p2/N4N2/1Q2P3/2b5

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb2
      • 2.Bxf4#
    • 1...Sf8
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...d3
      • 2.Qe5#
  • Tries
    • 1.Rxf5?
      • threat
        • 2.Rxd5#
      • 1...Sf6
        • 2.Rxf6#
      • 1...gxf5!
  • Keys
    • 1.e4!
      • threat
        • 2.e5#
      • 1...dxe4
        • 2.Sxc4#
      • 1...fxe4
        • 2.Rxd5#
      • 1...dxe4 ep
        • 2.Qe5#
      • 1...fxe4 ep
        • 2.Bf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD,XQ(A)::B(G),XP(d)
    • S(j);OGATE::PXS(j)=Q
    • P(c);OGATE::QAB1(A)
  • Tries
    • Try
      • R(F);XP(g)
      • Threat
        • R1(F),XP(f)
      • Vars
        • S(j);N_GUARD::R(F),XS(j)
      • Refutation
        • P(i);XR(F)
  • Actual
    • P(B);
    • Threat
      • P(B)
    • Vars
      • P(f);N_GUARD,XP(B)::S(C),XR(b)
      • P(g);OGATE,XP(B)::R1(F),XP(f)
      • P(c);EP,OGATE,XP(B)::QAB1(A)
      • P(d);EP,S_CUTB(a),XP(B)::B(G)
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