MESON Chess Problem Database

Problem Display
PID: 243087 (8/5Q2/4Bp2/5N2/5k2/5p2/5N2/5K2 w - - 0 1)

Livshits, Eduard Yakovlevich

Osada tschernovo korolya, 1960

8/5Q2/4Bp2/5N2/5k2/5p2/5N2/5K2

#2

5 + 3

5454 Near Snap 2021
15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qa7?
      • threat
        • 2.Qe3#
      • 1...Ke5
        • 2.Qe3#
      • 1...Kg5!
    • 1.Qb7?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kg5!
    • 1.Qd7?
      • 1...Ke5
        • 2.Qd6#
      • 1...Kg5!
    • 1.Qe7?
      • 1...Ke5
        • 2.Qd6#
      • 1...Kg5!
    • 1.Qh7?
      • 1...Kg5
        • 2.Qh6#
      • 1...Ke5!
  • Keys
    • 1.Qf8!
      • 1...Ke5
        • 2.Qd6#
      • 1...Kg5
        • 2.Qh6#

Anticipated by 208765(1876)

This anticipates 87375(1966)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(b);S_FLIGHT::QAB1(E)
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