MESON Chess Problem Database

Problem Display
PID: 245535 (2K3Q1/8/1bkN4/8/4N3/n7/8/8 w - - 0 1)

Shumarin, Vladimir Pavlovich

Kudesnik, 2006

2K3Q1/8/1bkN4/8/4N3/n7/8/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qc4+?
      • 1...Bc5
        • 2.Qxc5#
      • 1...Sxc4!
  • Keys
    • 1.Qb3!
      • 1...Sc4
        • 2.Qb5#
      • 1...Bg1
        • 2.Qb7#
      • 1...Bf2
        • 2.Qb7#
      • 1...Be3
        • 2.Qb7#
      • 1...Bd4
        • 2.Qb7#
      • 1...Ba5
        • 2.Qb7#
      • 1...Bc5
        • 2.Qb7#
      • 1...Ba7
        • 2.Qb7#
      • 1...Bc7
        • 2.Qb7#
      • 1...Bd8
        • 2.Qb7#
      • 1...Sb1
        • 2.Qb5#
      • 1...Sc2
        • 2.Qb5#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(D),XB(b)
      • Refutation
        • S(a);XQ(D)
  • Actual
    • Q(D);
    • Vars
      • S(a);N_GUARD::QAB1(D)
      • B(b);OGATE::QAB1(D)
      • S(a);N_GUARD::QAB1(D),XS(a)
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