MESON Chess Problem Database

Problem Display
PID: 233027 (8/1QqnNN2/3p4/3p4/3k4/3P4/3R4/3K4 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2011

8/1QqnNN2/3p4/3p4/3k4/3P4/3R4/3K4

#2

6 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qb2#
  • Tries
    • 1.Qxd5+?
      • 1...Ke3
        • 2.Qe4#
      • 1...Kc3!
    • 1.Qb4+?
      • 1...Qc4
        • 2.Sf5#
      • 1...Ke3!
  • Keys
    • 1.Sf5+!
      • 1...Kc3
        • 2.Qb2#
      • 1...Kc5
        • 2.Rc2#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(D)
  • Tries
    • Try
      • Q(D);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • Q(d);P_SPINQ(d)::S(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(E);CHECK
    • Vars
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);S_FLIGHT::R(B)
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