MESON Chess Problem Database

Problem Display
PID: 225852 (5b1q/8/R5b1/2Pkn1nR/N7/2PP4/4Q3/K7 w - - 0 1)

Cuperka, Stefan

Praca, 1954

5b1q/8/R5b1/2Pkn1nR/N7/2PP4/4Q3/K7

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rxd6#
    • 1...Bh6
      • 2.Rd6#
    • 1...Bg7
      • 2.Rd6#
    • 1...Sxd3
      • 2.Qe6#
    • 1...Sef3
      • 2.Qe6#
    • 1...Sc4
      • 2.Qe6#
      • 2.dxc4#
    • 1...Sg4
      • 2.Qe6#
    • 1...Sd7
      • 2.Qe6#
    • 1...Sef7
      • 2.Qe6#
    • 1...Sgf3
      • 2.Qa2#
    • 1...Sh3
      • 2.Qa2#
    • 1...Se4
      • 2.Qa2#
    • 1...Se6
      • 2.Qa2#
    • 1...Sgf7
      • 2.Qa2#
    • 1...Sh7
      • 2.Qa2#
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qd4#
      • 1...Bxc5
        • 2.Qxc5#
      • 1...Sxd3
        • 2.Qe6#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Sef3
        • 2.Qe6#
      • 1...Sc4
        • 2.Qe6#
      • 1...Sg4
        • 2.Qe6#
      • 1...Sc6
        • 2.Sb6#
      • 1...Sd7
        • 2.Qe6#
      • 1...Sef7
        • 2.Qe6#
      • 1...Sgf3
        • 2.c4#
      • 1...Se6
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(e);N_GUARD::R1(H),XB(e)
    • B(e);N_GUARD::R1(H)
    • S(b);OGATE,P_PINP(C),P_SPINS(c),XP(D)::QAB1(B)
    • S(b);OGATE,P_PINP(C),P_SPINS(c)::QAB1(B)
    • S(c);P_SPINS(b)::QAB(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • B(e);OGATE,XP(F)::QAR1(B),XB(e)
      • S(b);OGATE,P_PINP(C),P_SPINS(c),XP(D)::QAB1(B)
      • B(e);N_GUARD::R1(H),XB(e)
      • S(b);OGATE,P_PINP(C),P_SPINS(c)::QAB1(B)
      • S(b);P_PINP(C),P_SPINS(c),SBLOCK::S(E)
      • S(c);P_SPINS(b)::P(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).