MESON Chess Problem Database

Problem Display
PID: 106112 (4b3/Q2R2n1/5p1R/7B/1N2kp2/4pN2/1b1nK3/8 w - - 0 1)

Brock, David Thurston

Checkmate, 1904

4b3/Q2R2n1/5p1R/7B/1N2kp2/4pN2/1b1nK3/8

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf5
      • 2.Qb7#
      • 2.Qa8#
    • 1...f5
      • 2.Qb7#
      • 2.Qa8#
  • Tries
    • 1.Bg6+?
      • 1...Sf5
        • 2.Qb7#
        • 2.Qa8#
      • 1...f5
        • 2.Qb7#
        • 2.Qa8#
      • 1...Bxg6!
    • 1.Qd4+?
      • 1...Kf5
        • 2.Rxf6#
      • 1...Bxd4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qc2#
        • 2.Qd5#
      • 1...Sxf3
        • 2.Bxf3#
        • 2.Qd5#
      • 1...Be5
        • 2.Qc2#
      • 1...Bc3
        • 2.Qd5#
      • 1...Bf7
        • 2.Qc2#
      • 1...Sc4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • B(h);XB(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::R1(E),XP(f)
      • Refutation
        • B(a);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);::QAB(F)
      • B(a);::QAB1(F)
      • B(h);::QAB(F)
      • S(b);::QAB1(F)
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