MESON Chess Problem Database

Problem Display
PID: 171296 (3K4/8/p2kp3/N6Q/8/2P5/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Znamya Ilycha, 1987

3K4/8/p2kp3/N6Q/8/2P5/8/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qh1?
      • 1...Kc5
        • 2.Qc6#
      • 1...e5
        • 2.Qc6#
      • 1...Ke5!
    • 1.Qb5?
      • threat
        • 2.Sc4#
        • 2.Sb7#
      • 1...e5
        • 2.Qc6#
      • 1...axb5!
  • Keys
    • 1.Qf3!
      • 1...Kc5
        • 2.Qc6#
      • 1...Ke5
        • 2.Sc4#
      • 1...e5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • P(c);SBLOCK::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);SBLOCK::QAR1(C)
      • Refutation
        • P(a);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::QAR1(C)
      • K(b);S_FLIGHT::S(B)
      • P(c);SBLOCK::QAR1(C)
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