MESON Chess Problem Database

Problem Display
PID: 244994 (8/2N2K2/3k4/8/4P3/8/8/2Q5 w - - 0 1)

Akimov, Nikolai Nikolaevich

Smena (Moscow), 1999

8/2N2K2/3k4/8/4P3/8/8/2Q5

#2

4 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sb5+?
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
    • 1.Sd5?
      • threat
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
    • 1.Sa6?
      • threat
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
    • 1.Sa8?
      • threat
        • 2.Qc7#
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
    • 1.Se8+?
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qc7#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kd7
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • 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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