MESON Chess Problem Database

Problem Display
PID: 235479 (8/4B3/8/3K4/5N2/1nN4P/1p1k4/1Bb4Q w - - 0 1)

Surkov, Ruslan Albertovich

Zadachi i Etyudi, 2001

8/4B3/8/3K4/5N2/1nN4P/1p1k4/1Bb4Q

#2

7 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Bg5?
      • threat
        • 2.Sfe2#
      • 1...Ke3
        • 2.Sd3#
      • 1...Kxc3!
    • 1.Qg2+?
      • 1...Ke1
        • 2.Sd3#
        • 2.Bh4#
        • 2.Qe2#
      • 1...Kxc3
        • 2.Qc2#
      • 1...Ke3!
    • 1.Qd1+?
      • 1...Kxc3
        • 2.Se2#
        • 2.Qc2#
        • 2.Qd3#
      • 1...Ke3!
    • 1.Qh2+?
      • 1...Ke1
        • 2.Qe2#
      • 1...Kxc3
        • 2.Qc2#
      • 1...Ke3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qe1#
      • 1...Kxc3
        • 2.Bb4#
      • 1...Ke3
        • 2.Bg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);
      • Threat
        • B(G)+S(E)
      • Vars
        • K(c);S_FLIGHT::B(G)+S(E)
      • Refutation
        • K(c);S_FLIGHT,XS(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
        • K(c);OGATE,S_FLIGHT,XS(C)::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • QAB1(B)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(C)::B(G)
      • K(c);S_FLIGHT::B(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).