MESON Chess Problem Database

Problem Display
PID: 7780 (8/8/8/N7/1K1P4/3k4/2p2Q2/6N1 w - - 0 1)

Krizhanivsky, Vasil Viktorovich

The Problemist, 1993

8/8/8/N7/1K1P4/3k4/2p2Q2/6N1

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qe2#
      • 1...Ke4
        • 2.Qf3#
      • 1...c1S!
    • 1.Qf3+?
      • 1...Kxd4
        • 2.Sc6#
      • 1...Kd2!
  • Keys
    • 1.Sb3!
      • threat
        • 2.Sc5#
        • 2.Qe2#
        • 2.Qf3#
      • 1...Ke4
        • 2.Qf3#
      • 1...c1Q
        • 2.Qe2#
      • 1...c1S
        • 2.Sc5#
      • 1...c1B
        • 2.Sc5#
        • 2.Qe2#
      • 1...c1R
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB1(B)
      • Vars
        • K(b);S_FLIGHT::QAB1(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(D)::S(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • S(E);
    • Threat
      • DUALS(3)
    • Vars
      • K(b);S_FLIGHT::QAB1(B)
      • P(a);::QAB1(B)
      • P(a);::S(E)
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