MESON Chess Problem Database

Problem Display
PID: 190024 (5Q2/8/6BP/3K1Pk1/2P5/2B4P/8/8 w - - 0 1)

Neiman, Moisei Borisovich

Shakhmatny Vestnik, 1913

5Q2/8/6BP/3K1Pk1/2P5/2B4P/8/8

#2

8 + 1

5454 Near Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qd6?
      • 1...Kxh6
        • 2.Qf4#
      • 1...Kh4!
    • 1.Qe7+?
      • 1...Kxh6
        • 2.Bd2#
        • 2.Bg7#
        • 2.Qh4#
        • 2.Qe3#
      • 1...Kf4!
    • 1.Qf6+?
      • 1...Kxh6
        • 2.Bd2#
        • 2.Qh4#
      • 1...Kf4!
    • 1.Qb8?
      • 1...Kxh6
        • 2.Qf4#
      • 1...Kh4!
    • 1.Qd8+?
      • 1...Kxh6
        • 2.Qh4#
      • 1...Kf4!
  • Keys
    • 1.Qa3!
      • 1...Kf4
        • 2.Bd2#
      • 1...Kh4
        • 2.Bf6#
      • 1...Kxh6
        • 2.Qc1#

This anticipates 161687(1987)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);
      • Vars
        • K(a);S_FLIGHT,XP(G)::QAB(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(H);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT,XP(G)::QAR2(H)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(H);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT,XP(G)::QAB(H)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).