MESON Chess Problem Database

Problem Display
PID: 219844 (8/3pB3/Q7/P7/kp6/8/1K6/8 w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1973

8/3pB3/Q7/P7/kp6/8/1K6/8

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qb6?
      • threat
        • 2.Qxb4#
      • 1...b3
        • 2.Qb4#
      • 1...d6!
    • 1.Qc6+?
      • 1...Kxa5
        • 2.Bd8#
      • 1...dxc6!
  • Keys
    • 1.Bd8!
      • 1...b3
        • 2.Qc4#
      • 1...d5
        • 2.Qc6#
      • 1...d6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(b)
      • Vars
        • P(b);::QAR1(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(B)::B(D)
      • Refutation
        • P(c);XQ(C)
  • Actual
    • B(D);
    • Vars
      • P(b);OGATEB::QAR2(C)
      • P(c);N_GUARD::QAB(C)
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