MESON Chess Problem Database

Problem Display
PID: 175105 (3K4/8/1pN2n2/1p1k4/1B6/8/P1Q5/3B4 w - - 0 1)

Maksimov, Nikolai Ivanovich

Tijdschrift vd NSB, 1902

3K4/8/1pN2n2/1p1k4/1B6/8/P1Q5/3B4

#2

6 + 4

6490 yacpdb 2018
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Bf3+?
      • 1...Se4
        • 2.Qxe4#
      • 1...Ke6!
    • 1.Qb3+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kxc6!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Be2#
        • 2.Bb3#
      • 1...Kxc6!
  • Keys
    • 1.Qg6!
      • 1...Kc4
        • 2.Bb3#
      • 1...Kxc6
        • 2.Bf3#
      • 1...Ke6
        • 2.Bb3#
      • 1...Se4
        • 2.Bb3#
      • 1...Sg4
        • 2.Bb3#
      • 1...Sh5
        • 2.Bb3#
      • 1...Sd7
        • 2.Bb3#
      • 1...Sh7
        • 2.Bb3#
      • 1...Se8
        • 2.Bb3#
      • 1...Sg8
        • 2.Bb3#

This anticipates 213698(1977)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAB1(C),XS(d)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT,XS(E)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);S_FLIGHT,XS(E)
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::B(A)
      • K(b);P_SPINS(d),S_FLIGHT,XS(E)::B(A)
      • K(b);P_SPINS(d),S_FLIGHT::B(A)
      • S(d);::B(A)
HTML5 logo

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).