MESON Chess Problem Database

Problem Display
PID: 2381 (4b3/1Q4n1/P1N5/3k4/N5B1/2K5/8/4n3 w - - 0 1)

Groves, George

Source?, 0000

4b3/1Q4n1/P1N5/3k4/N5B1/2K5/8/4n3

#2

6 + 4

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Kd6!
    • 1.Qd7+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Bxd7!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sb4#
      • 1...Kxc6
        • 2.Qc5#
      • 1...Bxc6
        • 2.Sb6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sc2
        • 2.Bf3#
      • 1...Sd3
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • B(d);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • S(E)
    • Vars
      • K(b);S_FLIGHT,XS(E)::QAR1(F)
      • B(d);SBLOCK,XS(E)::S(B)
      • S(c);N_GUARD::QAB1(F),XS(c)
      • S(a);N_GUARD::B(C)
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