MESON Chess Problem Database

Problem Display
PID: 230879 (2N4B/8/B2p4/2k1nQ2/8/1p1p4/R6b/3N1K2 w - - 0 1)

Briggs, A

Preston Guardian, 1882

(First published on Tue Jul 25 1882)

2N4B/8/B2p4/2k1nQ2/8/1p1p4/R6b/3N1K2

#2

7 + 6

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qxd6#
      • 1...Kb4
        • 2.Qxd6#
      • 1...Kd4
        • 2.Qc4#
      • 1...Kc6
        • 2.Qxd6#
      • 1...Sf3
        • 2.Qc4#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Sg4
        • 2.Qc4#
      • 1...Sc6
        • 2.Qc4#
      • 1...Sg6
        • 2.Qc4#
      • 1...Sd7
        • 2.Qc4#
      • 1...Sf7
        • 2.Qc4#
      • 1...d5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);N_PINS(e)
    • Threat
      • QAB1(D),XP(f)
    • Vars
      • K(d);S_FLIGHT::QAB(D),XP(f)
      • K(d);P_SPINS(e),S_FLIGHT::QAR1(D)
      • K(d);P-FLIGHT,P_SPINP(f)::QAR1(D),XP(f)
      • S(e);N_GUARD::QAR1(D)
      • S(e);N_GUARD::QAR1(D),XS(e)
      • S(e);N_GUARD,SBLOCK::QAR1(D)
      • P(f);OGATE,SBLOCK::QAB1(D)
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