MESON Chess Problem Database

Problem Display
PID: 119948 (8/b3R3/5p2/3kP1pp/Np6/1P3KP1/4N3/7Q w - - 0 1)

Dunka, Gyorgy Jusztin

Karlovac Chess Club, 1912

8/b3R3/5p2/3kP1pp/Np6/1P3KP1/4N3/7Q

#2

8 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf2
      • 2.Kxf2#
    • 1...Be3
      • 2.Kxe3#
    • 1...Bb8
      • 2.Kf2#
      • 2.Ke3#
    • 1...g4+
      • 2.Kf4#
    • 1...h4
      • 2.Kg4#
  • Tries
    • 1.Sec3+?
      • 1...Kd4
        • 2.Qd1#
      • 1...Kc6
        • 2.Ke2#
      • 1...bxc3!
    • 1.Qd1+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Bd4!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Ke3#
      • 1...Kxd4
        • 2.Qd1#
      • 1...Bxd4
        • 2.Ke2#
      • 1...fxe5
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(f);::QAB(A)+K(D),XB(f)
    • P(c);CHECK::QAB(A)+K(D)
    • P(d);::QAB(A)+K(D)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • K(b);S_FLIGHT::QAB(A)+K(D)
      • Refutation
        • P(a);XS(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::QAB1(A)
      • Refutation
        • B(f);P_SPINB(f)
  • Actual
    • S(B);
    • Threat
      • QAB(A)+K(D)
    • Vars
      • K(b);OGATEB,P-FLIGHT,XS(B)::QAR(A)
      • B(f);SBLOCK,XS(B)::QAB(A)+K(D)
      • P(e);SBLOCK,XP(G)::R(H)
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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).