MESON Chess Problem Database

Problem Display
PID: 208090 (8/1p2pp1P/2P1k3/2P3P1/4K1P1/1P6/4P3/7Q w - - 0 1)

Ashmore, J

Dubuque Chess Journal, 1874

8/1p2pp1P/2P1k3/2P3P1/4K1P1/1P6/4P3/7Q

#2

9 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qf5#
      • 1...f5+
        • 2.Qxf5#
      • 1...f6!
    • 1.Qf1?
      • threat
        • 2.Qf5#
      • 1...f5+
        • 2.Qxf5#
      • 1...f6!
    • 1.h8Q?
      • threat
        • 2.Qe5#
        • 2.Qc8#
      • 1...bxc6
        • 2.Qc8#
      • 1...f6
        • 2.Qg8#
      • 1...f5+!
  • Keys
    • 1.Kd4!
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...bxc6
        • 2.Qxc6#
      • 1...f5
        • 2.Qd5#
      • 1...f6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(d);CHECK::QAB1(A),XP(d)
      • Refutation
        • P(d);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • P(d);CHECK::QAB1(A),XP(d)
      • Refutation
        • P(d);
    • Try
      • P(I);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XP(H)::QAB(I)
        • P(d);OGATEB::QAB(I)
      • Refutation
        • P(d);CHECK
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • P(b);OGATE,XP(H)::QAR2(A),XP(b)
      • P(d);::QAB1(A)
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