MESON Chess Problem Database

Problem Display
PID: 199379 (8/8/pP4pK/k1N5/P2N4/7p/R2n1B2/1Q5q w - - 0 1)

Dyachuk, Vasyl Vasilovich

Freie Presse, 2001

(First published on Fri Aug 24 2001)

8/8/pP4pK/k1N5/P2N4/7p/R2n1B2/1Q5q

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qc6
      • 2.Sxc6#
    • 1...Qb7
      • 2.Sxb7#
    • 1...Qc1
      • 2.Sc6#
      • 2.Sb7#
    • 1...Qd1
      • 2.Sc6#
      • 2.Sb7#
    • 1...Qe1
      • 2.Sc6#
      • 2.Sb7#
    • 1...Qf1
      • 2.Sc6#
      • 2.Sb7#
    • 1...Qg1
      • 2.Sc6#
      • 2.Sb7#
    • 1...Qh2
      • 2.Sc6#
      • 2.Sb7#
    • 1...Sf3
      • 2.Sc6#
      • 2.Sb7#
    • 1...Se4
      • 2.Sc6#
      • 2.Sb7#
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qb4#
      • 1...Qxb1
        • 2.Sb7#
      • 1...Sxb1
        • 2.Sb3#
      • 1...Sb3
        • 2.Sxb3#
      • 1...Qe4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qb4#
      • 1...Qxb1
        • 2.Sc6#
      • 1...Sxb1
        • 2.Sb3#
      • 1...Sb3
        • 2.Sxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(a);N_GUARD::S(E),XQ(a)
    • Q(a);N_GUARD::S(F),XQ(a)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(A)
      • Vars
        • Q(a);N_GUARD,XQ(A)::S(F)
        • S(b);N_GUARD,XQ(A)::S(F)
        • S(b);N_GUARD::S(F),XS(b)
      • Refutation
        • Q(a);
  • Actual
    • S(F);
    • Threat
      • QAB1(A)
    • Vars
      • Q(a);N_GUARD,XQ(A)::S(E)
      • S(b);N_GUARD,XQ(A)::S(E)
      • S(b);N_GUARD::S(E),XS(b)
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