MESON Chess Problem Database

Problem Display
PID: 253139 (2N3K1/p1Q5/N3P3/3k4/P4P2/b4P2/4P3/8 w - - 0 1)

Ireland, Alfred H

The Field, 1909

(First published on Sat Oct 30 1909)

2N3K1/p1Q5/N3P3/3k4/P4P2/b4P2/4P3/8

#2

9 + 3

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Qf7#
  • Tries
    • 1.Sb6+?
      • 1...Kd4
        • 2.Qe5#
      • 1...Kxe6
        • 2.Qe5#
      • 1...axb6!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Qe4#
        • 2.Qb5#
      • 1...Kc4!
    • 1.Qd6+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Bxd6!
    • 1.Qc2?
      • threat
        • 2.Qe4#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kxe6!
    • 1.Qd7+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Bd6!
    • 1.e4+?
      • 1...Kxe6
        • 2.Qf7#
      • 1...Kd4!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qe4#
      • 1...Kc4
        • 2.Qd3#
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qe4#
        • 2.Qd7#
      • 1...Kxe6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(G)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAB1(G)
        • K(b);N_GUARD,S_FLIGHT,XP(F)::QAR1(G)
      • Refutation
        • P(c);XS(H)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(G)
      • Refutation
        • B(a);XQ(G)
    • Try
      • Q(G);
      • Threat
        • QAB1(G)
      • Vars
        • K(b);N_GUARD,P-FLIGHT::QAR1(G)
      • Refutation
        • K(b);S_FLIGHT,XP(F)
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(G)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • P(A);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT,XP(F)::QAB1(G)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(G);
    • Threat
      • QAB1(G)
    • Vars
      • K(b);N_GUARD,S_FLIGHT::QAB1(G)
      • K(b);N_GUARD,P-FLIGHT::QAR1(G)
      • K(b);OGATEB,S_FLIGHT,XP(F)::QAB1(G)
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