MESON Chess Problem Database

Problem Display
PID: 32831 (7K/8/6N1/5b2/1nR5/3p1k1B/8/6Q1 w - - 0 1)

Thompson, Theophilus Augustus

Chess Problems by Theophilus A. Thompson, 1873

7K/8/6N1/5b2/1nR5/3p1k1B/8/6Q1

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Bg4#
    • 1...Bg4
      • 2.Bxg4#
    • 1...Bxg6
      • 2.Bg4#
  • Tries
    • 1.Qf1+?
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke3!
  • Keys
    • 1.Re4!
      • threat
        • 2.Re3#
        • 2.Qe3#
        • 2.Qg2#
      • 1...Kxe4
        • 2.Bg2#
      • 1...Bxh3
        • 2.Re3#
      • 1...Bxe4
        • 2.Bg4#
      • 1...Bxg6
        • 2.Qe3#
        • 2.Qg2#
      • 1...Sc2
        • 2.Qg2#
      • 1...Sd5
        • 2.Qg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • B(d);N_GUARD::B(B)
    • B(d);N_GUARD::B(B),XB(d)
    • B(d);N_GUARD,XS(D)::B(B)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);S_FLIGHT,XR(C)::B(B)
      • B(d);XB(B)::R1(C)
      • B(d);N_GUARD,SBLOCK,XR(C)::B(B)
      • S(c);::QAB1(A)
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