MESON Chess Problem Database

Problem Display
PID: 118357 (8/8/2P3q1/N2R4/k5BQ/4R3/P1N2PK1/2b5 w - - 0 1)

Rasmussen, Knud AK

Toronto Telegram, 1945

8/8/2P3q1/N2R4/k5BQ/4R3/P1N2PK1/2b5

#2

10 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc2
      • 2.Bd1#
    • 1...Qe4+
      • 2.Rxe4#
    • 1...Qf5
      • 2.Bxf5#
    • 1...Qh5
      • 2.Bxh5#
      • 2.Re4#
    • 1...Qf7
      • 2.Bf5#
      • 2.Re4#
    • 1...Qe8
      • 2.Be6#
    • 1...Qxg4+
      • 2.Qxg4#
    • 1...Qg5
      • 2.Re4#
    • 1...Qxc6
      • 2.Bd7#
    • 1...Qe6
      • 2.Bxe6#
    • 1...Qh6
      • 2.Re4#
    • 1...Qg8
      • 2.Re4#
    • 1...Bd2
      • 2.Ra3#
    • 1...Ba3
      • 2.Rxa3#
  • Keys
    • 1.Sb7!
      • threat
        • 2.Ra5#
      • 1...Qe4+
        • 2.Rxe4#
      • 1...Qxg4+
        • 2.Qxg4#
      • 1...Qxc2
        • 2.Bd1#
      • 1...Qxc6
        • 2.Bd7#
      • 1...Qf5
        • 2.Bxf5#
      • 1...Qh5
        • 2.Bxh5#
        • 2.Re4#
      • 1...Qg5
        • 2.Re4#
      • 1...Bd2
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(c);N_PINB(F),P_PINP(C),XS(B)::QAR(G)+B(F)
    • Q(c);CHECK,N_GUARD,N_PINB(F)::R(E),XQ(c)
    • Q(c);N_PINB(F)::QAR(G)+B(F),XQ(c)
    • Q(c);N_PINB(F)::QAR(G)+B(F)
    • Q(c);CHECK,OGATE,P_SPINQ(c),XB(F)::QAR(G),XQ(c)
    • Q(c);N_GUARD::R(E)
    • Q(c);N_PINB(F),P_PINR(I),XP(J)::QAR(G)+B(F)
    • Q(c);N_GUARD,N_PINB(F)::R(E)
    • B(a);N_GUARD::R1(E)
    • B(a);N_GUARD::R1(E),XB(a)
  • Actual
    • S(H);
    • Threat
      • R1(I)
    • Vars
      • Q(c);CHECK,N_GUARD,N_PINB(F)::R(E),XQ(c)
      • Q(c);CHECK,OGATE,P_SPINQ(c),XB(F)::QAR(G),XQ(c)
      • Q(c);N_PINB(F),P_PINP(C),XS(B)::QAR(G)+B(F)
      • Q(c);N_PINB(F),P_PINR(I),XP(J)::QAR(G)+B(F)
      • Q(c);N_PINB(F)::QAR(G)+B(F),XQ(c)
      • Q(c);N_GUARD::R(E)
      • B(a);N_GUARD::R1(E)
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).