MESON Chess Problem Database

Problem Display
PID: 187714 (1nN5/3p4/p2P4/p2k4/P2Pp1Q1/8/2N5/2R1K3 w - - 0 1)

Charvat, Prokop

The Houston Post, 1909

1nN5/3p4/p2P4/p2k4/P2Pp1Q1/8/2N5/2R1K3

#2

8 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kc6
      • 2.Qxe4#
    • 1...Sc6
      • 2.Qg8#
    • 1...e3
      • 2.Sxe3#
  • Tries
    • 1.Kd1?
      • 1...Kc6
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#
      • 1...e3
        • 2.Sxe3#
      • 1...Kc4!
    • 1.Kf1?
      • 1...Kc6
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#
      • 1...e3
        • 2.Sxe3#
      • 1...Kc4!
    • 1.Ke2?
      • 1...Kc6
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#
      • 1...e3
        • 2.Sxe3#
      • 1...Kc4!
    • 1.Kf2?
      • 1...e3+
        • 2.Sxe3#
      • 1...Kc6
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#
      • 1...Kc4!
    • 1.Qf5+?
      • 1...Kc6
        • 2.Qxe4#
      • 1...Kc4!
  • Keys
    • 1.Kd2!
      • 1...e3+
        • 2.Sxe3#
      • 1...Kc4
        • 2.Qg8#
      • 1...Kc6
        • 2.Qxe4#
      • 1...Sc6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(F),XP(a)
    • S(f);SBLOCK::QAB(F)
    • P(a);::S(C),XP(a)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(a)
        • S(f);SBLOCK::QAB(F)
        • P(a);::S(C),XP(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(a)
        • S(f);SBLOCK::QAB(F)
        • P(a);::S(C),XP(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(a)
        • S(f);SBLOCK::QAB(F)
        • P(a);::S(C),XP(a)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(a);CHECK::S(C),XP(a)
        • K(c);S_FLIGHT::QAB(F),XP(a)
        • S(f);SBLOCK::QAB(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(F),XP(a)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • P(a);CHECK::S(C),XP(a)
      • K(c);S_FLIGHT::QAB(F)
      • K(c);S_FLIGHT::QAB(F),XP(a)
      • S(f);SBLOCK::QAB(F)
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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).