MESON Chess Problem Database

Problem Display
PID: 189529 (5K1Q/4p3/4P3/7P/8/n3N2N/2B4p/1b4bk w - - 0 1)

Maksimov, Nikolai Ivanovich

Tidskrift for Schack, 1911

5K1Q/4p3/4P3/7P/8/n3N2N/2B4p/1b4bk

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Be4#
  • Tries
    • 1.Kxe7?
      • threat
        • 2.Qa8#
      • 1...Ba2
        • 2.Be4#
      • 1...Bxc2!
    • 1.Kf7?
      • threat
        • 2.Qa8#
      • 1...Ba2
        • 2.Be4#
      • 1...Bxc2!
    • 1.Kg7?
      • threat
        • 2.Qa8#
      • 1...Ba2
        • 2.Be4#
      • 1...Bxc2!
    • 1.Qd4?
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Ba2
        • 2.Be4#
        • 2.Qe4#
      • 1...Bxc2!
    • 1.Qe5?
      • threat
        • 2.Qe4#
        • 2.Qd5#
      • 1...Ba2
        • 2.Be4#
        • 2.Qe4#
      • 1...Bxc2!
  • Keys
    • 1.Qa1!
      • 1...Bxc2
        • 2.Sf2#
      • 1...Bxe3
        • 2.Be4#
      • 1...Sxc2
        • 2.Qa8#
      • 1...Ba2
        • 2.Sf2#
        • 2.Be4#
      • 1...Bf2
        • 2.Be4#
      • 1...Sc4
        • 2.Qa8#
      • 1...Sb5
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD,SBLOCK::B(A)
  • Tries
    • Try
      • K(F);S_FLIGHT,XP(f)
      • Threat
        • QAB(G)
      • Vars
        • B(a);N_GUARD,SBLOCK::B(A)
      • Refutation
        • B(a);XB(A)
    • Try
      • K(F);P-FLIGHT
      • Threat
        • QAB(G)
      • Vars
        • B(a);N_GUARD,P_PINP(E),SBLOCK::B(A)
      • Refutation
        • B(a);XB(A)
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAB(G)
      • Vars
        • B(a);N_GUARD,SBLOCK::B(A)
      • Refutation
        • B(a);XB(A)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);XB(A)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • B(a);XB(A)
  • Actual
    • Q(G);
    • Vars
      • B(a);P_SPINB(b),XB(A)::S(C)
      • B(b);P_SPINB(a),XS(B)::B(A)
      • S(e);OGATE,XB(A)::QAB(G)
      • B(b);P_SPINB(a)::B(A)
      • S(e);OGATE::QAB(G)
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).