MESON Chess Problem Database

Problem Display
PID: 77752 (6K1/5Rp1/B2nNp2/2p2r2/Q1q2n2/2pk2N1/1b1p1B2/8 w - - 0 1)

Lindgren, Frithiof

Dagens Nyheder, 1920

6K1/5Rp1/B2nNp2/2p2r2/Q1q2n2/2pk2N1/1b1p1B2/8

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxf4#
    • 1...Re5
      • 2.Sxf4#
    • 1...Rg5
      • 2.Sxf4#
    • 1...Rh5
      • 2.Sxf4#
    • 1...Sd5
      • 2.Sxc5#
    • 1...Se4
      • 2.Bxc4#
    • 1...Sb7
      • 2.Bxc4#
    • 1...Sxf7
      • 2.Bxc4#
    • 1...Sc8
      • 2.Bxc4#
    • 1...Se8
      • 2.Bxc4#
    • 1...d1Q
      • 2.Qxd1#
    • 1...d1S
      • 2.Qxd1#
    • 1...d1B
      • 2.Qxd1#
    • 1...d1R
      • 2.Qxd1#
  • Keys
    • 1.Rd7!
      • threat
        • 2.Bxc4#
      • 1...Qxa6
        • 2.Qe4#
      • 1...d1Q
        • 2.Qxd1#
      • 1...d1S
        • 2.Qxd1#
      • 1...d1B
        • 2.Qxd1#
      • 1...d1R
        • 2.Qxd1#
      • 1...c2
        • 2.Qxc4#
      • 1...Qb5
        • 2.Qe4#
      • 1...Rd5
        • 2.Sxf4#
      • 1...Sd5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • R(h);N_GUARD::S(E),XS(f)
    • S(f);S_CUTR(h)::S(E),XP(g)
    • S(i);N_GUARD::B(D),XQ(e)
    • S(i);N_GUARD,XR(F)::B(D),XQ(e)
    • P(b);OGATEB::QAR2(C),XQ(b)
    • P(b);OGATEB::QAR2(C),XS(b)
    • P(b);OGATEB::QAR2(C),XB(b)
    • P(b);OGATEB::QAR2(C),XR(b)
  • Actual
    • R(F);P_PINS(i),P_SPINS(E)
    • Threat
      • B(D),XQ(e)
    • Vars
      • Q(e);N_PINS(E),N_SPINQ(e),OGATE,XB(D)::QAB1(C)
      • P(b);OGATEB::QAR2(C),XQ(b)
      • P(b);OGATEB::QAR2(C),XS(b)
      • P(b);OGATEB::QAR2(C),XB(b)
      • P(b);OGATEB::QAR2(C),XR(b)
      • P(c);::QAB1(C),XQ(e)
      • Q(e);N_PINS(E),OGATE::QAB1(C)
      • R(h);N_PINS(E),N_SPINS(i)::S(E),XS(f)
      • S(f);N_PINS(E),N_SPINS(i)::S(E),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).