MESON Chess Problem Database

Problem Display
PID: 274367 (8/B7/1r6/1p2pp1r/1Q2PPb1/pBnk1p1p/3N1R2/5N1K w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Troll, 2023

(First published on Wed Oct 11 2023)

8/B7/1r6/1p2pp1r/1Q2PPb1/pBnk1p1p/3N1R2/5N1K

#2

9 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Sb1?
      • threat
        • 2.Bc2#
        • 2.Rd2#
      • 1...Sxb1
        • 2.Bc2#
      • 1...Sxe4
        • 2.Bc2#
      • 1...Se2!
    • 1.Sxf3?
      • threat
        • 2.Se1#
        • 2.Sxe5#
        • 2.Bc2#
        • 2.Rd2#
      • 1...Sxe4
        • 2.Se1#
        • 2.Sxe5#
        • 2.Bc2#
      • 1...exf4
        • 2.Se1#
        • 2.Se5#
        • 2.Bc2#
        • 2.Rd2#
        • 2.Qd4#
      • 1...fxe4
        • 2.Se1#
        • 2.Bc2#
        • 2.Rd2#
      • 1...Re6
        • 2.Se1#
        • 2.Bc2#
        • 2.Rd2#
      • 1...Sb1
        • 2.Se1#
        • 2.Sxe5#
        • 2.Bc2#
      • 1...Se2
        • 2.Se1#
        • 2.Sxe5#
      • 1...Bxf3+!
    • 1.Qc5?
      • threat
        • 2.Qe3#
      • 1...Sd1
        • 2.Bc2#
      • 1...Sd5
        • 2.Bc2#
      • 1...exf4!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxe5#
      • 1...Kd4
        • 2.Sb2#
        • 2.Sxe5#
      • 1...Kxe4
        • 2.Sb2#
        • 2.Sxe5#
      • 1...bxc4
        • 2.Qxc4#
      • 1...exf4
        • 2.Se5#
      • 1...fxe4
        • 2.Rd2#
      • 1...Re6
        • 2.Bc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);XS(C)::B(E)
        • S(b);XP(G)::B(E)
      • Refutation
        • S(b);
    • Try
      • S(C);XP(d)
      • Threat
        • DUALS(4)
      • Refutation
        • B(f);CHECK,XS(C)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • S(b);::B(E)
      • Refutation
        • P(h);XP(H)
  • Actual
    • S(C);
    • Threat
      • S(C),XP(h)
    • Vars
      • P(g);OGATE,XS(C)::QAB1(F),XP(g)
      • P(h);XP(H)::S(C)
      • P(i);SBLOCK,XP(G)::R1(D)
      • R(k);::B(E)
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).