MESON Chess Problem Database

Problem Display
PID: 77838 (8/5Q2/6Kp/3R4/4p3/2B1kp2/1R3p2/2n5 w - - 0 1)

Seneca, Camil

Bulletin Ouvrier des Echecs, 1952

8/5Q2/6Kp/3R4/4p3/2B1kp2/1R3p2/2n5

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Bd2#
    • 1...Sd3
      • 2.Bd4#
  • Tries
    • 1.Kf5?
      • threat
        • 2.Qa7#
      • 1...Se2
        • 2.Bd2#
      • 1...Sd3
        • 2.Bd4#
      • 1...Sb3!
    • 1.Be5?
      • threat
        • 2.Bf4#
        • 2.Qf4#
        • 2.Qa7#
      • 1...Sb3
        • 2.Bf4#
        • 2.Qf4#
      • 1...Sd3
        • 2.Bd4#
      • 1...Se2!
    • 1.Bg7?
      • threat
        • 2.Bxh6#
      • 1...Sd3
        • 2.Bd4#
      • 1...h5
        • 2.Bh6#
      • 1...Se2!
    • 1.Re2+?
      • 1...Sxe2
        • 2.Bd2#
      • 1...fxe2
        • 2.Bd2#
      • 1...Kxe2!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qxh6#
      • 1...Se2
        • 2.Bd2#
      • 1...Sd3
        • 2.Bd4#
      • 1...h5
        • 2.Qh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::B(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAB(E)
      • Vars
        • S(a);SBLOCK::B(B)
      • Refutation
        • S(a);
    • Try
      • B(B);
      • Threat
        • DUALS(3)
      • Vars
        • S(a);SBLOCK::B(B)
      • Refutation
        • S(a);
    • Try
      • B(B);
      • Threat
        • B(B),XP(f)
      • Vars
        • S(a);SBLOCK::B(B)
        • P(f);::B(B)
      • Refutation
        • S(a);
    • Try
      • R(A);CHECK
      • Vars
        • S(a);SBLOCK,XR(A)::B(B)
        • P(d);SBLOCK,XR(A)::B(B)
      • Refutation
        • K(c);P-FLIGHT,XR(A)
  • Actual
    • Q(E);
    • Threat
      • QAB(E),XP(f)
    • Vars
      • S(a);SBLOCK::B(B)
      • P(f);::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).