MESON Chess Problem Database

Problem Display
PID: 157942 (4NK2/3B4/8/3kp3/3P4/3Q4/8/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Krasnaya iskra, 1986

4NK2/3B4/8/3kp3/3P4/3Q4/8/8

#2

5 + 2

5454 Near Snap 2016
15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Bc6+?
      • 1...Ke6
        • 2.Qg6#
        • 2.Qh3#
        • 2.d5#
      • 1...Kxc6!
    • 1.Be6+?
      • 1...Kc6
        • 2.Qa6#
      • 1...Kxe6!
  • Keys
    • 1.Bb5!
      • 1...Ke6
        • 2.d5#
      • 1...exd4
        • 2.Qf5#
      • 1...e4
        • 2.Qc4#

Anticipated by 48003(1983)

This anticipates 267949(1995), 151790(2009)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
  • Actual
    • B(C);
    • Vars
      • K(a);OGATE,S_FLIGHT::P(B)
      • P(b);OGATEB,P_SPINP(b),SBLOCK,XP(B)::QAR2(A)
      • P(b);SBLOCK::QAB1(A)
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