MESON Chess Problem Database

Problem Display
PID: 32687 (6K1/1Q2p1N1/4p1k1/4Pb1p/5Bpb/3p2P1/3P4/8 w - - 0 1)

Thompson, Theophilus Augustus

Chess Problems by Theophilus A. Thompson, 1873

6K1/1Q2p1N1/4p1k1/4Pb1p/5Bpb/3p2P1/3P4/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qxe4#
  • Tries
    • 1.Qxe7?
      • threat
        • 2.Qf7#
        • 2.Qe8#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Bxe7!
    • 1.gxh4?
      • 1...Be4
        • 2.Qxe4#
      • 1...g3!
  • Keys
    • 1.Qh1!
      • 1...Bxg3
        • 2.Qxh5#
      • 1...Bg5
        • 2.Qxh5#
      • 1...Bf6
        • 2.Qxh5#
      • 1...Be4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(d);OGATEB::QAB(E),XB(d)
  • Tries
    • Try
      • Q(E);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(c);N_GUARD::QAR1(E),XB(c)
      • Refutation
        • B(c);XQ(E)
    • Try
      • P(B);XB(c)
      • Vars
        • B(d);OGATEB::QAB(E),XB(d)
      • Refutation
        • P(b);
  • Actual
    • Q(E);
    • Vars
      • B(c);OGATE,XP(B)::QAB1(E),XP(e)
      • B(c);OGATE::QAB1(E),XP(e)
      • B(d);OGATEB::QAB(E),XB(d)
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