MESON Chess Problem Database

Problem Display
PID: 171390 (8/4k3/3N1N2/4pR2/8/4Q3/7K/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Minimat, 1995

8/4k3/3N1N2/4pR2/8/4Q3/7K/8

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxe5#
  • Tries
    • 1.Qa7+?
      • 1...Ke6
        • 2.Qd7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Qf7#
      • 1...Kxd6!
  • Keys
    • 1.Rxe5+!
      • 1...Kxd6
        • 2.Qc5#
      • 1...Kxf6
        • 2.Qg5#
      • 1...Kd8
        • 2.Qb6#
      • 1...Kf8
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(b);P-FLIGHT::QAR1(B),XP(a)
  • Tries
    • Try
      • Q(B);CHECK,N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
        • K(b);S_FLIGHT::QAR1(B)
        • K(b);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
  • Actual
    • R(C);CHECK,XP(a)
    • Vars
      • K(b);S_FLIGHT,XS(D)::QAB1(B)
      • K(b);S_FLIGHT,XS(E)::QAB1(B)
      • K(b);S_FLIGHT::QAB(B)
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