MESON Chess Problem Database

Problem Display
PID: 86867 (Q7/3NK3/8/P7/3k4/6P1/P2P4/5B2 w - - 0 1)

Davidenko, Fedor Vasilevich

Marandiuk, Mikhail Nazarovich

Chervoni Girnik, 1984

Q7/3NK3/8/P7/3k4/6P1/P2P4/5B2

#2

8 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc5?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxc5!
    • 1.Sb6?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qd5#
      • 1...Kc5!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kc5!
    • 1.Qc8?
      • threat
        • 2.Qc4#
      • 1...Kd5
        • 2.Qc4#
      • 1...Ke4!
  • Keys
    • 1.Qa6!
      • threat
        • 2.Qd3#
        • 2.Qc4#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kd5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Vars
        • K(a);S_FLIGHT::QAR1(H)
      • Refutation
        • K(a);S_FLIGHT,XS(F)
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Vars
        • K(a);S_FLIGHT::QAR1(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Threat
        • QAR1(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • K(a);P-FLIGHT::QAB1(H)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(H);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAB1(H)
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