MESON Chess Problem Database

Problem Display
PID: 235001 (8/8/8/8/8/1P2N2P/4k3/2K3Q1 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2019

8/8/8/8/8/1P2N2P/4k3/2K3Q1

#2

5 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf1?
      • 1...Ke1
        • 2.Sg3#
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sc2?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sg2?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sc4?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sg4?
      • threat
        • 2.Qd1#
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sd5?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
    • 1.Sf5?
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3!
  • Keys
    • 1.Sd1!
      • 1...Kd3
        • 2.Qe3#
      • 1...Kf3
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(a);P-FLIGHT::QAR(B)+S(D)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);S_FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
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