MESON Chess Problem Database

Problem Display
PID: 164208 (3Q4/6K1/8/6B1/2B3k1/8/7P/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Sa ogneupory, 1988

3Q4/6K1/8/6B1/2B3k1/8/7P/8

#2

5 + 1

5454 Near Snap 2017
15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Be2#
  • Tries
    • 1.Be2+?
      • 1...Kf5
        • 2.Qd5#
      • 1...Kh3!
    • 1.Qf6?
      • 1...Kh5
        • 2.Be2#
      • 1...Kh3!
    • 1.Qd5?
      • 1...Kh5
        • 2.Be2#
      • 1...Kh3!
  • Keys
    • 1.Qd2!
      • 1...Kf3
        • 2.Qe2#
      • 1...Kh3
        • 2.Be6#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kh5
        • 2.Be2#

Anticipated by 2475(0000), 5102(1899), 223485(1926), 140936(1980/I)

This anticipates 157940(1993), 104591(1999), 169618(2002), 171073(2002), 79157(2004), 153216(2011)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(B)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::B(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);S_FLIGHT::QAB1(E)
      • K(a);S_FLIGHT::B(B)
      • K(a);S_FLIGHT::QAR1(E)
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