MESON Chess Problem Database

Problem Display
PID: 9395 (3R4/1b6/8/K1krp3/Q3Pn2/2N5/4PP2/8 w - - 0 1)

Maksimov, Nikolai Ivanovich

5th Prize, Hampstead and Highgate Express, 1902

3R4/1b6/8/K1krp3/Q3Pn2/2N5/4PP2/8

#2

7 + 5

3310 2345 Chess Problems 1997
273 Mat Plus 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qb5#
    • 1...Rd2
      • 2.Qb5#
    • 1...Rd3
      • 2.Qb5#
    • 1...Rd4
      • 2.Qb5#
    • 1...Bc6
      • 2.Qb4#
  • Tries
    • 1.exd5?
      • threat
        • 2.Se4#
        • 2.Qb4#
      • 1...Sxd5
        • 2.Se4#
      • 1...Sd3
        • 2.Se4#
      • 1...e4
        • 2.Sxe4#
        • 2.Qb4#
      • 1...Bxd5!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Sb5#
      • 1...Kc4+
        • 2.Sb5#
      • 1...Kd4+
        • 2.Sb5#
      • 1...Kc6+
        • 2.Sxd5#
      • 1...Sxe2
        • 2.Sxe2#
      • 1...Rd2
        • 2.Sa4#
      • 1...Rd3
        • 2.Sa4#
      • 1...Rd4
        • 2.Sa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(c);::QAR1(D)
    • B(e);SBLOCK::QAB1(D)
  • Tries
    • Try
      • P(E);XR(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(E)::S(C)
        • S(a);::S(C)
      • Refutation
        • B(e);XP(E)
  • Actual
    • Q(D);
    • Threat
      • QAR(D)+S(C)
    • Vars
      • K(b);CHECK,P-FLIGHT::QAR(D)+S(C)
      • K(b);CHECK,P_SPINR(c),S_FLIGHT::S(C)
      • K(b);CHECK,P-FLIGHT::QAR(D)+S(C),XR(c)
      • S(a);XP(A)::QAR(D)+S(C),XS(a)
      • R(c);::QAR(D)+S(C),DCHECK
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).