MESON Chess Problem Database

Problem Display
PID: 224448 (3Q2n1/3p4/8/1K3R2/3k4/4p3/4P3/8 w - - 0 1)

Willis, J

York Daily (York, Pennsylvania), 1887

3Q2n1/3p4/8/1K3R2/3k4/4p3/4P3/8

#2

4 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6+?
      • 1...Ke4
        • 2.Qe5#
      • 1...Sxf6!
    • 1.Qxd7+?
      • 1...Ke4
        • 2.Qd3#
        • 2.Qd5#
      • 1...Kc3!
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qe5#
        • 2.Qc4#
      • 1...Ke4
        • 2.Qf4#
        • 2.Qe5#
      • 1...d5
        • 2.Rf4#
        • 2.Qe5#
      • 1...d6
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK,N_PINP(c)
      • Vars
        • K(b);P-FLIGHT::QAR1(D)
      • Refutation
        • S(d);XQ(D)
    • Try
      • Q(D);CHECK,XP(c)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(D);N_PINP(c)
    • Threat
      • DUALS(2)
    • Vars
      • P(c);::QAR1(D)
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