MESON Chess Problem Database

Problem Display
PID: 274055 (3R1n2/1N1pkp2/1R6/2P3P1/8/2K5/B3p3/Q3n3 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2023

3R1n2/1N1pkp2/1R6/2P3P1/8/2K5/B3p3/Q3n3

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d5
      • 2.cxd5 ep#
    • 1...d6
      • 2.cxd6#
    • 1...f5
      • 2.gxf5 ep#
    • 1...f6
      • 2.gxf6#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qf6#
      • 1...Sh7
        • 2.Qe5#
      • 1...f6
        • 2.Qxf6#
        • 2.gxf6#
      • 1...Sf3+!
    • 1.Kc4?
      • threat
        • 2.Qf6#
      • 1...f6
        • 2.Qxf6#
      • 1...Sh7
        • 2.Qe5#
      • 1...d5+!
    • 1.Rf6?
      • threat
        • 2.Rxf7#
      • 1...d5
        • 2.cxd5 ep#
      • 1...Se6!
  • Keys
    • 1.Kb3!
      • threat
        • 2.Qf6#
      • 1...f6
        • 2.Qxf6#
      • 1...Sh7
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • P(c);OGATE::P(D),XP(c),EP
    • P(c);OGATE::P(D),XP(c)
    • P(e);OGATE::P(E),XP(e),EP
    • P(e);OGATE::P(E),XP(e)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • S(f);N_GUARD::QAR2(A)
      • Refutation
        • S(a);CHECK
    • Try
      • K(C);P-FLIGHT
      • Threat
        • QAB1(A)
      • Vars
        • P(e);::QAB1(A),XP(e)
        • S(f);N_GUARD::QAR2(A)
      • Refutation
        • P(c);CHECK
    • Try
      • R(F);
      • Threat
        • R1(F),XP(e)
      • Vars
        • P(c);OGATE::P(D),XP(c),EP
      • Refutation
        • S(f);
  • Actual
    • K(C);P-FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • P(e);::QAB1(A),XP(e)
      • S(f);N_GUARD::QAR2(A)
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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).