MESON Chess Problem Database

Problem Display
PID: 266850 (7Q/8/8/8/3P4/4K3/7P/2NkN3 w - - 0 1)

Akimov, Nikolai Nikolaevich

Mosiashvili-75 JT (Kudesnik), 2022

7Q/8/8/8/3P4/4K3/7P/2NkN3

#2

6 + 1

5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Qg7?
      • 1...Kxe1
        • 2.Qg1#
      • 1...Kxc1!
    • 1.Qh5+?
      • 1...Kxe1
        • 2.Qe2#
      • 1...Kxc1!
    • 1.Qh7?
      • 1...Kxc1
        • 2.Qc2#
      • 1...Kxe1!
    • 1.Qg8?
      • 1...Kxe1
        • 2.Qg1#
      • 1...Kxc1!
    • 1.d5?
      • 1...Kxc1
        • 2.Qa1#
      • 1...Kxe1!
  • Keys
    • 1.Qa8!
      • 1...Kxc1
        • 2.Qa1#
      • 1...Kxe1
        • 2.Qh1#

Anticipated by 182253(1906)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(B)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(B)::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • Q(F);
      • Vars
        • K(a);N_GUARD,P-FLIGHT,XS(A)::QAR1(F)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • Q(F);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(B)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • P(E);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(A)::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
  • Actual
    • Q(F);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(A)::QAR2(F)
      • K(a);OGATEB,P-FLIGHT,XS(B)::QAR(F)
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