MESON Chess Problem Database

Problem Display
PID: 121470 (8/2K5/1P6/7Q/1Pkp1P2/P7/8/1B6 w - - 0 1)

Smutny, Jan

Tidskrift for Schack, 1910

8/2K5/1P6/7Q/1Pkp1P2/P7/8/1B6

#2

7 + 2

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2+?
      • 1...Kc3
        • 2.Qc2#
      • 1...Kd5
        • 2.Ba2#
        • 2.Qa2#
      • 1...d3
        • 2.Qxd3#
      • 1...Kb3!
    • 1.Qf3?
      • 1...d3
        • 2.Qxd3#
      • 1...Kb5!
    • 1.Qh3?
      • 1...Kd5
        • 2.Qb3#
      • 1...d3
        • 2.Qxd3#
      • 1...Kb5!
    • 1.Qf5?
      • 1...Kc3
        • 2.Qc2#
      • 1...d3
        • 2.Qxd3#
      • 1...Kb3!
  • Keys
    • 1.Qd1!
      • 1...Kc3
        • 2.Qc2#
      • 1...Kb5
        • 2.Bd3#
      • 1...Kd5
        • 2.Qb3#
      • 1...d3
        • 2.Qxd3#

Anticipated by 121469(1902)

This anticipates 120007(1913), 170488(1971)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
        • P(b);P_SPINP(b)::QAB1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAB(E)
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);P-FLIGHT::QAR1(E)
        • P(b);::QAB1(E),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(E);
    • Vars
      • K(a);P-FLIGHT::QAR1(E)
      • K(a);S_FLIGHT::B(A)
      • K(a);P_SPINP(b),S_FLIGHT::QAB(E)
      • P(b);::QAB1(E),XP(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).