MESON Chess Problem Database

Problem Display
PID: 172071 (6b1/5p2/2pB3n/4P1n1/RbN2k1P/7p/K4P2/1QNB4 w - - 0 1)

Apro, Laszlo

Shakhmaty v SSSR, 1970

6b1/5p2/2pB3n/4P1n1/RbN2k1P/7p/K4P2/1QNB4

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.e6#
    • 1...Bd2
      • 2.e6#
    • 1...Ba5
      • 2.e6#
    • 1...c5
      • 2.e6#
  • Tries
    • 1.Se3?
      • threat
        • 2.e6#
      • 1...Sf3
        • 2.Se2#
      • 1...Se4
        • 2.Sd3#
      • 1...Sg4
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Se6!
  • Keys
    • 1.Sd2!
      • threat
        • 2.e6#
      • 1...Sf3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Se6
        • 2.Qe4#
      • 1...Sg4
        • 2.Se2#
      • 1...Sf5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD::B(J)+P(I)
    • P(e);S_CUTB(b)::B(J)+P(I)
  • Tries
    • Try
      • S(G);P_PINB(b)
      • Threat
        • B(J)+P(I)
      • Vars
        • S(d);SBLOCK::S(B)
        • S(d);N_SPINB(b),SBLOCK::S(B)
        • S(f);N_GUARD::QAR1(A)
        • S(f);N_GUARD::QAR1(A),XS(f)
      • Refutation
        • S(d);
  • Actual
    • S(G);P_PINB(b)
    • Threat
      • B(J)+P(I)
    • Vars
      • S(d);N_GUARD::QAR1(A)
      • S(d);N_GUARD,N_SPINB(b)::QAR1(A),XS(d)
      • S(f);SBLOCK::S(B)
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).