MESON Chess Problem Database

Problem Display
PID: 249516 (2q3br/1rP5/1pP1p1Pp/b3Q3/7p/1NpPpPp1/4k3/2R1N1K1 w - - 0 1)

Makarenko, Petr Leontevich

Pankratiev, Aleksandr Nikolaevich

Schach-Aktiv, 1989

2q3br/1rP5/1pP1p1Pp/b3Q3/7p/1NpPpPp1/4k3/2R1N1K1

#2

10 + 13

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc2?
      • threat
        • 2.Qxe3#
      • 1...Kxd3
        • 2.Qb5#
      • 1...Kxf3!
    • 1.Qxg3?
      • threat
        • 2.Qh2#
        • 2.Qg2#
      • 1...Qxc7
        • 2.Qg2#
      • 1...h3
        • 2.Qh2#
      • 1...hxg3!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Qxe3#
      • 1...Kxd3
        • 2.Qb5#
      • 1...Kxf3
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(G),XP(c)
      • Vars
        • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(E)::QAB(G)
      • Refutation
        • K(a);N_SPINP(c),S_FLIGHT,XP(F)
    • Try
      • Q(G);N_PINP(c),XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • Q(k);XP(J)::QAR2(G)
        • P(e);::QAR(G)
      • Refutation
        • P(e);XQ(G)
  • Actual
    • S(B);
    • Threat
      • QAR1(G),XP(c)
    • Vars
      • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(E)::QAB(G)
      • K(a);N_SPINP(c),OGATEB,S_FLIGHT,XP(F)::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).