MESON Chess Problem Database

Problem Display
PID: 162712 (nn6/1p1NK3/p1k1p3/p7/P7/3N1P2/2P3QB/8 w - - 0 1)

Thomas, Georg

Springaren, 1956

nn6/1p1NK3/p1k1p3/p7/P7/3N1P2/2P3QB/8

#2

8 + 7

15601 Albrecht-Leiss-Degener Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.S3e5+?
      • 1...Kd5
        • 2.Qd2#
      • 1...Kc7!
    • 1.Sxb8+?
      • 1...Kb6
        • 2.Qg1#
        • 2.Qf2#
      • 1...Kd5!
    • 1.Qg6?
      • threat
        • 2.Qe4#
        • 2.Qxe6#
      • 1...Kd5
        • 2.Qe4#
      • 1...Sxd7
        • 2.Qxe6#
      • 1...b5
        • 2.Qe4#
      • 1...b6
        • 2.Qe4#
      • 1...Sb6
        • 2.Qxe6#
      • 1...Sc7!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxe6#
        • 2.Qc4#
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#
      • 1...Sxd7
        • 2.Qxe6#
      • 1...e5
        • 2.Qc4#
      • 1...b5
        • 2.Qe4#
      • 1...b6
        • 2.Qe4#
      • 1...Sb6
        • 2.Qxe6#
      • 1...Sc7
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR(B)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • S(G);CHECK,XS(g)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);P_PINP(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINP(d),S_FLIGHT::QAB1(B)
        • S(g);XS(G)::QAR2(B),XP(d)
        • P(e);::QAB(B)
        • S(f);::QAR2(B),XP(d)
      • Refutation
        • S(f);
  • Actual
    • Q(B);
    • Threat
      • DUALS(3)
    • Vars
      • K(c);S_FLIGHT::QAB1(B)
      • S(g);XS(G)::QAR2(B),XP(d)
      • P(d);::QAR2(B)
      • P(e);::QAB(B)
      • S(f);::QAR2(B),XP(d)
      • S(f);::QAR2(B)
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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).