MESON Chess Problem Database

Problem Display
PID: 104431 (Q3Nb2/R1NpkppR/2P3P1/4P3/1n2K2n/8/4p3/4r3 w - - 0 1)

Mladenovic, Slobodan

1st Comm., Schakend Nederland, 1973

Q3Nb2/R1NpkppR/2P3P1/4P3/1n2K2n/8/4p3/4r3

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d5+
      • 2.exd5 ep#
    • 1...d6
      • 2.exd6#
    • 1...f5+
      • 2.exf5 ep#
    • 1...f6
      • 2.exf6#
  • Tries
    • 1.Sd5+?
      • 1...Ke6
        • 2.Sec7#
      • 1...Sxd5!
    • 1.Sf6?
      • threat
        • 2.Sg8#
        • 2.Qe8#
      • 1...dxc6
        • 2.Qe8#
      • 1...fxg6
        • 2.Qe8#
      • 1...gxf6
        • 2.Rxf7#
        • 2.Qe8#
      • 1...d5+!
  • Keys
    • 1.Sxg7!
      • threat
        • 2.Qe8#
      • 1...d5+
        • 2.Sxd5#
      • 1...f5+
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • P(e);CHECK,OGATE::P(B),XP(e),EP
    • P(e);OGATE::P(B),XP(e)
    • P(g);CHECK,OGATE,P_SPINP(h)::P(B),XP(g),EP
    • P(g);OGATE,P_SPINP(h)::P(B),XP(g)
  • Tries
    • Try
      • S(F);CHECK,P_PINP(e)
      • Vars
        • K(f);N_SPINP(e),P-FLIGHT::S(I)
      • Refutation
        • S(c);XS(F)
    • Try
      • S(I);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);XP(C)::QAR1(H)
        • P(g);P_SPINP(h),XP(D)::QAR1(H)
      • Refutation
        • P(e);CHECK
  • Actual
    • S(I);XP(h)
    • Threat
      • QAR1(H)
    • Vars
      • P(e);CHECK::R(E)+S(F),DCHECK,XP(e)
      • P(g);CHECK::R(G)+S(I),DCHECK,XP(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).