MESON Chess Problem Database

Problem Display
PID: 153150 (7Q/6R1/8/8/8/ppK5/8/rk6 w - - 0 1)

Lincoln, Robert A

3rd Comm., PZR Zagreb QCT, 2011

7Q/6R1/8/8/8/ppK5/8/rk6

#2

3 + 4

145 StrateGems 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Rg1#
      • 2.Qh1#
    • 1...Ra2
      • 2.Rg1#
      • 2.Qh1#
    • 1...a2
      • 2.Rg1#
      • 2.Qh1#
  • Tries
    • 1.Rg2?
      • threat
        • 2.Qh1#
      • 1...Kc1
        • 2.Rg1#
        • 2.Qh1#
      • 1...b2!
    • 1.Qh2?
      • threat
        • 2.Rg1#
      • 1...Kc1
        • 2.Rg1#
        • 2.Qg1#
        • 2.Qh1#
      • 1...b2!
    • 1.Qh7+?
      • 1...Kc1
        • 2.Rg1#
        • 2.Qh1#
      • 1...Ka2!
    • 1.Qb8?
      • 1...Kc1
        • 2.Rg1#
      • 1...Ka2
        • 2.Qxb3#
      • 1...Ra2
        • 2.Rg1#
      • 1...a2
        • 2.Rg1#
      • 1...b2!
  • Keys
    • 1.Qg8!
      • 1...Kc1
        • 2.Rg1#
      • 1...Ka2
        • 2.Qxb3#
      • 1...b2
        • 2.Rg1#
      • 1...Ra2
        • 2.Rg1#
      • 1...a2
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR(C)
      • Refutation
        • P(d);
    • Try
      • Q(C);
      • Threat
        • R(B)
      • Refutation
        • P(d);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);P_PINP(d)
      • Vars
        • K(b);N_SPINP(d),P-FLIGHT::R(B)
        • K(b);N_SPINP(d),S_FLIGHT::QAB1(C),XP(d)
        • R(a);SBLOCK::R(B)
        • P(c);SBLOCK::R(B)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Vars
      • K(b);P-FLIGHT::R(B)
      • K(b);P_SPINP(d),S_FLIGHT::QAB1(C),XP(d)
      • P(d);::R(B)
      • R(a);SBLOCK::R(B)
      • P(c);SBLOCK::R(B)
HTML5 logo

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).