MESON Chess Problem Database

Problem Display
PID: 2112 (8/3bp3/4k2N/n4p2/R6K/3Q4/8/B7 w - - 0 1)

Brown, Theodore Morris

Source?, 0000

8/3bp3/4k2N/n4p2/R6K/3Q4/8/B7

#2

5 + 5

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Re4#
  • Tries
    • 1.Sf7?
      • threat
        • 2.Sg5#
        • 2.Sd8#
      • 1...Sc6
        • 2.Sg5#
        • 2.Qc4#
        • 2.Qb3#
      • 1...Sb7
        • 2.Sg5#
        • 2.Qc4#
        • 2.Qb3#
      • 1...Kxf7!
    • 1.Qc4+?
      • 1...Kd6
        • 2.Sf7#
      • 1...Sxc4!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Qxf5#
      • 1...Ke5
        • 2.Re4#
      • 1...Kf6
        • 2.Rd6#
      • 1...f4
        • 2.Re4#
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD::R(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);S_FLIGHT,XS(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P-FLIGHT::S(E)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • R(C);
    • Threat
      • QAB1(B),XP(b)
    • Vars
      • K(c);P-FLIGHT::B(A)+R(C),DCHECK
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