MESON Chess Problem Database

Problem Display
PID: 154442 (8/1nKp2R1/3p1P1q/3k1P1N/2R2P1n/1P3p1Q/1B4p1/8 w - - 0 1)

Pochtarev, Konstantin Grigorevich

Zadachi i Etyudi, 1995

8/1nKp2R1/3p1P1q/3k1P1N/2R2P1n/1P3p1Q/1B4p1/8

#2

10 + 8

5007 Zadachi i Etyudi 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf4
      • 2.Sxf4#
    • 1...Qxf6
      • 2.Sxf6#
    • 1...Sxf5
      • 2.Qxf5#
    • 1...Sg6
      • 2.Qxf3#
    • 1...Sc5
      • 2.Rd4#
    • 1...f2
      • 2.Qd3#
  • Keys
    • 1.Rxg2!
      • threat
        • 2.Rd2#
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Qxf6
        • 2.Sxf6#
      • 1...Sxg2
        • 2.Qxf3#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...fxg2
        • 2.Qd3#
      • 1...Sc5
        • 2.Rd4#
      • 1...f2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • Q(f);XP(E)::S(G),XQ(f)
    • Q(f);XP(H)::S(G),XQ(f)
    • S(c);OGATE,XP(F)::QAR2(C),XS(c)
    • S(c);N_GUARD::QAB(C),XP(b)
    • S(g);SBLOCK::R1(D)
    • P(b);OGATE::QAR2(C)
  • Actual
    • R(J);XP(a)
    • Threat
      • R(J)
    • Vars
      • Q(f);XP(E)::S(G),XQ(f)
      • Q(f);XP(H)::S(G),XQ(f)
      • S(c);N_GUARD,XR(J)::QAB(C),XP(b)
      • S(c);OGATE,XP(F)::QAR2(C),XS(c)
      • P(b);OGATE,XR(J)::QAR2(C)
      • S(g);SBLOCK::R1(D)
      • P(b);OGATE::QAR2(C)
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).