MESON Chess Problem Database

Problem Display
PID: 171353 (8/8/6p1/2K1kpQ1/4p2B/8/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/8/6p1/2K1kpQ1/4p2B/8/8/8

#2

3 + 4

6490 yacpdb 2018
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qe7#
    • 1...e3
      • 2.Qxe3#
  • Tries
    • 1.Kc6?
      • 1...Ke6
        • 2.Qf6#
        • 2.Qe7#
      • 1...e3
        • 2.Qxe3#
      • 1...Kd4!
    • 1.Qxg6?
      • threat
        • 2.Qd6#
      • 1...Kf4
        • 2.Qg3#
      • 1...f4
        • 2.Qf6#
      • 1...e3!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd6#
      • 1...Ke6
        • 2.Qd5#
      • 1...e3
        • 2.Qxe3#
      • 1...f4
        • 2.Qd5#

Anticipated by 205539(1925), 241772(1928)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINP(c),P-FLIGHT::QAR1(C)
    • P(a);OGATEB::QAR2(C),XP(a)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(a);OGATEB::QAR2(C),XP(a)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(C);N_PINP(c),XP(d)
      • Threat
        • QAB1(C)
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
        • P(c);::QAB1(C)
      • Refutation
        • P(a);
  • Actual
    • Q(C);N_PINP(c)
    • Threat
      • QAB1(C)
    • Vars
      • K(b);P-FLIGHT::QAB1(C)
      • P(a);OGATEB::QAR2(C),XP(a)
      • P(c);SBLOCK::QAR1(C)
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Developed and maintained by Brian Stephenson.
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