MESON Chess Problem Database

Problem Display
PID: 166076 (8/7p/K5pr/6R1/5P1k/6r1/3p1Qpq/3B2N1 w - - 0 1)

Klein, Max

Troll, 2017

8/7p/K5pr/6R1/5P1k/6r1/3p1Qpq/3B2N1

#2

6 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxg1
      • 2.Qxg3#
    • 1...Qh1
      • 2.Qxg3#
    • 1...Qh3
      • 2.Sf3#
    • 1...Rh5
      • 2.Rg4#
  • Tries
    • 1.Ka5?
      • 1...Qxg1
        • 2.Qxg3#
      • 1...Qh1
        • 2.Qxg3#
      • 1...Qh3
        • 2.Sf3#
      • 1...Rh5!
    • 1.Kb5?
      • 1...Qxg1
        • 2.Qxg3#
      • 1...Qh1
        • 2.Qxg3#
      • 1...Qh3
        • 2.Sf3#
      • 1...Rh5!
    • 1.Kb6?
      • 1...Rh5
        • 2.Rg4#
      • 1...Qh1
        • 2.Qxg3#
      • 1...Qh3
        • 2.Sf3#
      • 1...Qxg1!
    • 1.Ka7?
      • 1...Rh5
        • 2.Rg4#
      • 1...Qh1
        • 2.Qxg3#
      • 1...Qh3
        • 2.Sf3#
      • 1...Qxg1!
  • Keys
    • 1.Kb7!
      • 1...Qxg1
        • 2.Qxg3#
      • 1...Rh5
        • 2.Rg4#
      • 1...Qh1
        • 2.Qxg3#
      • 1...Qh3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_GUARD,XS(B)::QAB1(C),XR(d)
    • Q(c);N_GUARD::QAB1(C),XR(d)
    • Q(c);SBLOCK::S(B)
    • R(g);SBLOCK::R1(E)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • Q(c);N_GUARD,XS(B)::QAB1(C),XR(d)
        • Q(c);N_GUARD::QAB1(C),XR(d)
        • Q(c);SBLOCK::S(B)
      • Refutation
        • R(g);P_PINR(E)
    • Try
      • K(F);S_FLIGHT
      • Vars
        • Q(c);N_GUARD,XS(B)::QAB1(C),XR(d)
        • Q(c);N_GUARD::QAB1(C),XR(d)
        • Q(c);SBLOCK::S(B)
      • Refutation
        • R(g);P_PINR(E)
    • Try
      • K(F);P-FLIGHT
      • Vars
        • R(g);SBLOCK::R1(E)
        • Q(c);N_GUARD::QAB1(C),XR(d)
        • Q(c);SBLOCK::S(B)
      • Refutation
        • Q(c);P_PINQ(C),XS(B)
    • Try
      • K(F);P-FLIGHT
      • Vars
        • R(g);SBLOCK::R1(E)
        • Q(c);N_GUARD::QAB1(C),XR(d)
        • Q(c);SBLOCK::S(B)
      • Refutation
        • Q(c);P_PINQ(C),XS(B)
  • Actual
    • K(F);S_FLIGHT
    • Vars
      • Q(c);N_GUARD,XS(B)::QAB1(C),XR(d)
      • R(g);SBLOCK::R1(E)
      • Q(c);N_GUARD::QAB1(C),XR(d)
      • Q(c);SBLOCK::S(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).