MESON Chess Problem Database

Problem Display
PID: 181311 (1bN5/q3p3/1p6/4k1B1/NnP1P3/5p1B/rpP2Q1K/4R3 w - - 0 1)

Marshall, Burney Means

British Chess Magazine, 1911

1bN5/q3p3/1p6/4k1B1/NnP1P3/5p1B/rpP2Q1K/4R3

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.exd5#
  • Tries
    • 1.Bf4+?
      • 1...Kxf4
        • 2.Qg3#
      • 1...Kf6!
    • 1.Qc5+?
      • 1...Sd5
        • 2.Qxd5#
        • 2.exd5#
      • 1...bxc5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qh8#
      • 1...Kd4+
        • 2.e5#
      • 1...Sd5
        • 2.exd5#
      • 1...e6
        • 2.Bf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(d);OGATE::R(A)+P(H),XS(d)
  • Tries
    • Try
      • B(I);CHECK
      • Vars
        • K(e);P_SPINP(c),S_FLIGHT,XB(I)::QAB1(C)
      • Refutation
        • K(e);P_PINB(I),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • P(f);XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C)
    • Vars
      • K(e);CHECK,OGATE,S_FLIGHT::QAR(C)+P(H)
      • S(d);OGATE::R(A)+P(H),XS(d)
      • P(h);N_GUARD::B(I)
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