MESON Chess Problem Database

Problem Display
PID: 245851 (3R4/1K6/2NP4/3k4/8/8/1B6/5Q2 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Shakhmatna misl, 2002

3R4/1K6/2NP4/3k4/8/8/1B6/5Q2

#2

6 + 1

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...Ke4
        • 2.Re8#
      • 1...Ke6
        • 2.Qf6#
      • 1...Kc5!
    • 1.Sd4?
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke5
        • 2.Qf5#
      • 1...Ke4!
    • 1.Qd3+?
      • 1...Kc5
        • 2.Ba3#
      • 1...Ke6!
  • Keys
    • 1.Se5!
      • threat
        • 2.Qc4#
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc5
        • 2.Qc4#
      • 1...Ke6
        • 2.Qf7#

Anticipated by 222908(1926), 227921(1926), 30940(1937), 214872(1975), 227343(1984), 137118(1992)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R(F)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
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