MESON Chess Problem Database

Problem Display
PID: 7465 (7B/1pn1Np2/4kP2/4pp2/BnN2b2/8/8/6QK w - - 0 1)

Rychkov, Vladimir Nikolaevich

HM., Moscow Ty., 1990

7B/1pn1Np2/4kP2/4pp2/BnN2b2/8/8/6QK

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qb6#
    • 1...Sc2
      • 2.Qb6#
    • 1...Sd3
      • 2.Qb6#
    • 1...Sba6
      • 2.Qb6#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qxf5#
      • 1...Sc2
        • 2.Qb6#
      • 1...Sd3
        • 2.Qb6#
      • 1...e4!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qd6#
      • 1...Sb5
        • 2.Qc8#
      • 1...Se8
        • 2.Qc8#
      • 1...e4
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • S(a);N_GUARD::QAR(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XP(d)
      • Vars
        • S(a);OGATE::QAR(A)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • S(g);OGATE::QAB(A)
      • P(c);OGATE::QAB1(A),XP(d)
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