MESON Chess Problem Database

Problem Display
PID: 181781 (4RQ2/1Kp2P1B/pp2P3/1N1k4/7r/1P1Nr3/n1P5/8 w - - 0 1)

Feigl, Maximilian

1st Prize, Tidskrift for Schack, 1905

4RQ2/1Kp2P1B/pp2P3/1N1k4/7r/1P1Nr3/n1P5/8

#2

10 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.c4#
    • 1...Rh2
      • 2.c4#
    • 1...Rh3
      • 2.c4#
    • 1...Rd4
      • 2.Sxc7#
    • 1...Rh5
      • 2.c4#
    • 1...Rh6
      • 2.c4#
    • 1...c5
      • 2.Qd6#
    • 1...c6
      • 2.Qd6#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Rd8#
        • 2.Qd8#
        • 2.Qd7#
      • 1...Rxd3
        • 2.Qg5#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Rxh7!
  • Keys
    • 1.Qh6!
      • threat
        • 2.Rd8#
      • 1...Rxd3
        • 2.Qg5#
      • 1...Rxe6
        • 2.Qxe6#
      • 1...Rxh6
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::P(A)
    • R(c);SBLOCK::S(D),XP(g)
    • P(g);N_GUARD::QAR1(J)
  • Tries
    • Try
      • Q(J);
      • Threat
        • DUALS(3)
      • Vars
        • R(b);N_GUARD,XS(C)::QAR(J)
        • R(b);OGATE,XP(E)::QAB1(J),XR(b)
      • Refutation
        • R(c);XB(H)
  • Actual
    • Q(J);
    • Threat
      • R(I)
    • Vars
      • R(b);N_GUARD,XS(C)::QAR(J)
      • R(b);OGATE,XP(E)::QAB1(J),XR(b)
      • R(c);N_GUARD,XQ(J)::P(A)
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).