MESON Chess Problem Database

Problem Display
PID: 232962 (8/8/8/3pp3/Q7/4k2N/2K3P1/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 1994

8/8/8/3pp3/Q7/4k2N/2K3P1/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Qb4?
      • 1...d4
        • 2.Qe1#
      • 1...e4
        • 2.Qd2#
      • 1...Ke2!
    • 1.Qf4+?
      • 1...Ke2
        • 2.Qf2#
      • 1...exf4!
    • 1.Qg4?
      • 1...d4
        • 2.Qf3#
      • 1...e4!
  • Keys
    • 1.Qh4!
      • 1...Ke2
        • 2.Qf2#
      • 1...e4
        • 2.Qf2#
      • 1...d4
        • 2.Qe1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • P(b);SBLOCK::QAR2(D)
        • P(c);SBLOCK::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • P(c);XQ(D)
    • Try
      • Q(D);
      • Vars
        • P(b);SBLOCK::QAR1(D)
      • Refutation
        • P(c);
  • Actual
    • Q(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • P(c);SBLOCK::QAB1(D)
      • P(b);SBLOCK::QAR2(D)
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