MESON Chess Problem Database

Problem Display
PID: 166515 (5B2/K7/3N4/k2n4/np6/8/8/Q7 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

2nd HM., Nottingham, 2017

5B2/K7/3N4/k2n4/np6/8/8/Q7

#2

4 + 4

56 The Problemist 2017

SOLUTION

  • SOUND
  • Keys
    • 1.Qf1!
      • threat
        • 2.Sb7#
        • 2.Qb5#
        • 2.Qa6#
      • 1...Sb2
        • 2.Qb5#
        • 2.Qa6#
      • 1...Sac3
        • 2.Qa6#
      • 1...Sc5
        • 2.Qb5#
      • 1...Sab6
        • 2.Qb5#
        • 2.Qa6#
      • 1...b3
        • 2.Sb7#
        • 2.Qb5#
      • 1...Sdc3
        • 2.Sb7#
        • 2.Qa6#
      • 1...Sc7
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(A);N_PINS(a)
    • Threat
      • DUALS(3)
    • Vars
      • S(a);::QAR1(A)
      • S(d);::S(B)
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