MESON Chess Problem Database

Problem Display
PID: 193841 (8/8/5p2/7Q/3N4/2p3K1/2p1B3/1nn1k3 w - - 0 1)

Kintzig, Robert

Pesti Naplo, 1916

8/8/5p2/7Q/3N4/2p3K1/2p1B3/1nn1k3

#2

4 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Sxc2#
    • 1...Sxe2+
      • 2.Qxe2#
  • Tries
    • 1.Qh2?
      • threat
        • 2.Sf3#
      • 1...Sxe2+
        • 2.Qxe2#
      • 1...Sd2
        • 2.Sxc2#
        • 2.Qf2#
      • 1...Kd2!
    • 1.Qe5?
      • threat
        • 2.Sf3#
      • 1...Sxe2+
        • 2.Qxe2#
      • 1...Kd2
        • 2.Sf3#
      • 1...Sd2
        • 2.Sxc2#
      • 1...fxe5!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Sf3#
      • 1...Sxe2+
        • 2.Qxe2#
      • 1...Kd2
        • 2.Sf3#
      • 1...Sd2
        • 2.Sxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK::S(C),XP(d)
    • S(b);CHECK,OGATE,XB(A)::QAR1(D),XS(b)
  • Tries
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • S(b);CHECK,OGATE,XB(A)::QAR1(D),XS(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • S(C)
      • Vars
        • S(b);CHECK,OGATE,P_SPINS(b),XB(A)::QAR1(D),XS(b)
        • K(c);S_FLIGHT::S(C)
        • S(a);SBLOCK::S(C),XP(d)
      • Refutation
        • P(f);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • S(C)
    • Vars
      • S(b);CHECK,OGATE,P_SPINS(b),XB(A)::QAR1(D),XS(b)
      • K(c);S_FLIGHT::S(C)
      • S(a);SBLOCK::S(C),XP(d)
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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).