MESON Chess Problem Database

Problem Display
PID: 171392 (N7/Pp6/3p4/1k1K4/8/Q7/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

N7/Pp6/3p4/1k1K4/8/Q7/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...b6
      • 2.Sc7#
  • Tries
    • 1.Qb4+?
      • 1...Ka6
        • 2.Qa4#
        • 2.Qb6#
      • 1...Kxb4!
    • 1.Qb3+?
      • 1...Ka6
        • 2.Qa4#
        • 2.Qb6#
      • 1...Ka5!
  • Keys
    • 1.Sc7+!
      • 1...Kb6
        • 2.a8S#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • P(c);SBLOCK::S(D)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);CHECK
    • Vars
      • K(a);P-FLIGHT::P=S
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