MESON Chess Problem Database

Problem Display
PID: 182250 (8/8/8/3p4/8/K3NQ2/5N2/4k1r1 w - - 0 1)

Ferber, Eugene

Deutsche Schachzeitung, 1906

8/8/8/3p4/8/K3NQ2/5N2/4k1r1

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sh3?
      • threat
        • 2.Qd1#
        • 2.Qf2#
      • 1...Rf1
        • 2.Qd1#
      • 1...Rg2
        • 2.Qd1#
      • 1...Kd2!
    • 1.Se4?
      • threat
        • 2.Sc2#
        • 2.Qd1#
        • 2.Qf2#
      • 1...Rf1
        • 2.Sc2#
        • 2.Sg2#
        • 2.Qd1#
        • 2.Qxf1#
      • 1...Rg2
        • 2.Sxg2#
        • 2.Qd1#
        • 2.Qf1#
      • 1...dxe4!
    • 1.Sc2+?
      • 1...Kf1
        • 2.Sd1#
        • 2.Sh1#
        • 2.Sd3#
        • 2.Sh3#
        • 2.Se4#
        • 2.Sg4#
      • 1...Kd2!
    • 1.Sc4?
      • threat
        • 2.Sd3#
      • 1...Kf1
        • 2.Sd3#
      • 1...dxc4!
  • Keys
    • 1.Sf1!
      • threat
        • 2.Sd3#
      • 1...Kxf1
        • 2.Sd3#
      • 1...Rxf1
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Vars
        • R(b);::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Threat
        • DUALS(3)
      • Refutation
        • P(c);XS(A)
    • Try
      • S(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Threat
        • S(A)
      • Vars
        • K(a);P-FLIGHT::QAR(D)+S(A)
      • Refutation
        • P(c);XS(C)
  • Actual
    • S(C);
    • Threat
      • S(A)
    • Vars
      • K(a);P-FLIGHT,XS(C)::QAR(D)+S(A)
      • R(b);SBLOCK,XS(C)::QAR2(D)
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).