MESON Chess Problem Database

Problem Display
PID: 224447 (5B2/7n/1Q6/6N1/4Nk2/7P/3P4/5K2 w - - 0 1)

Anonymous

Wilkes-Barre Record, 1888

(First published on Thu Dec 27 1888)

5B2/7n/1Q6/6N1/4Nk2/7P/3P4/5K2

#2

7 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sxf8
      • 2.Qf6#
  • Tries
    • 1.Qe6?
      • threat
        • 2.Bd6#
      • 1...Sxf8
        • 2.Qf6#
      • 1...Sxg5!
  • Keys
    • 1.Sg3!
      • threat
        • 2.Qe3#
      • 1...Kxg3
        • 2.Qf2#
      • 1...Ke5
        • 2.Qd6#
      • 1...Kxg5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(b);N_GUARD::QAR2(F),XS(b)
    • S(b);N_GUARD,XB(G)::QAR2(F)
  • Tries
    • Try
      • Q(F);
      • Threat
        • B(G)
      • Vars
        • S(b);N_GUARD,XB(G)::QAR2(F)
      • Refutation
        • S(b);XS(E)
  • Actual
    • S(D);
    • Threat
      • QAB1(F)
    • Vars
      • K(a);S_FLIGHT,XS(D)::QAB1(F)
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(F)
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