MESON Chess Problem Database

Problem Display
PID: 234981 (7Q/6P1/8/8/8/2B2P2/4k1PP/1K1N4 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2012

7Q/6P1/8/8/8/2B2P2/4k1PP/1K1N4

#2

8 + 1

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qh5?
      • 1...Kxd1
        • 2.f4#
      • 1...Kd3
        • 2.Qb5#
      • 1...Kf1!
    • 1.Qh6?
      • 1...Kxd1
        • 2.Qd2#
      • 1...Kd3
        • 2.Qa6#
      • 1...Kf1!
    • 1.Qh7?
      • 1...Kxd1
        • 2.Qc2#
        • 2.Qd3#
      • 1...Kf1!
    • 1.Qe8+?
      • 1...Kxd1
        • 2.Qe1#
      • 1...Kd3
        • 2.Qb5#
        • 2.Qe4#
      • 1...Kf1!
  • Keys
    • 1.Qh4!
      • 1...Kxd1
        • 2.Qe1#
      • 1...Kf1
        • 2.Qf2#
      • 1...Kd3
        • 2.Qe4#

There are these versions: 160657

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAB(H)+P(F)
        • K(a);S_FLIGHT::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT,XS(B)::QAR1(H)
        • K(a);S_FLIGHT::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XS(B)::QAR1(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT,XS(B)::QAR1(H)
      • K(a);S_FLIGHT::QAR1(H)
      • K(a);S_FLIGHT::QAB1(H)
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