MESON Chess Problem Database

Problem Display
PID: 93572 (Q7/4N3/2R5/4p3/3k1nP1/3pq3/p2r4/K2b4 w - - 0 1)

Traxler, Karel Peter

Humoristicke listy, 1887

Q7/4N3/2R5/4p3/3k1nP1/3pq3/p2r4/K2b4

#2

5 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Rc4#
    • 1...Qe4
      • 2.Qa7#
    • 1...Be2
      • 2.Qa4#
    • 1...Bf3
      • 2.Qa4#
    • 1...Ba4
      • 2.Qxa4#
    • 1...Bxg4
      • 2.Qa4#
    • 1...e4
      • 2.Qh8#
  • Tries
    • 1.Sf5+?
      • 1...Ke4
        • 2.Rc4#
      • 1...Kd5!
    • 1.Rc8?
      • threat
        • 2.Sf5#
      • 1...Bxg4
        • 2.Qa4#
      • 1...Qe4
        • 2.Qa7#
      • 1...Sd5
        • 2.Qxd5#
      • 1...e4!
    • 1.Qd8+?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Ke4!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Sf5#
      • 1...Bxg4
        • 2.Qa4#
      • 1...Qe4
        • 2.Qa7#
      • 1...Sd5
        • 2.Qxd5#
      • 1...e4
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • K(f);P-FLIGHT::QAB(E)+R(C),DCHECK
    • Q(e);SBLOCK::QAB(E)
    • B(a);N_GUARD::QAR(E)
    • B(a);N_GUARD::QAR(E),XB(a)
    • B(a);N_GUARD,XP(B)::QAR(E)
    • P(h);OGATEB,SBLOCK::QAB(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB(E)+R(C),DCHECK
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • S(D)
      • Vars
        • B(a);N_GUARD,XP(B)::QAR(E)
        • Q(e);SBLOCK::QAB(E)
        • S(g);N_GUARD::QAR1(E),XS(g)
      • Refutation
        • P(h);
    • Try
      • Q(E);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAR1(E),XS(g)
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • S(D)
    • Vars
      • B(a);N_GUARD,XP(B)::QAR(E)
      • Q(e);SBLOCK::QAB(E)
      • S(g);N_GUARD::QAR1(E),XS(g)
      • P(h);OGATEB,SBLOCK::QAB(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).