MESON Chess Problem Database

Problem Display
PID: 35647 (b4R1B/6q1/3p4/2n5/1RNp1p2/p2k1p2/6P1/3KQ3 w - - 0 1)

Reitman, Mark

5th HM., Springaren, 1996

b4R1B/6q1/3p4/2n5/1RNp1p2/p2k1p2/6P1/3KQ3

#2

7 + 9

3657 Izbrannie Shakhmatnie Zadachi Marka Reitmana 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Qd2#
    • 1...a2
      • 2.Sb2#
  • Tries
    • 1.Sxd6?
      • threat
        • 2.Qd2#
      • 1...Qxg2
        • 2.Rxd4#
      • 1...Sb3
        • 2.Rxb3#
      • 1...Se4!
    • 1.Rxf4?
      • threat
        • 2.Qd2#
      • 1...Qxg2
        • 2.Rxd4#
      • 1...Se4
        • 2.Rxf3#
      • 1...Sb3!
    • 1.Qf1+?
      • 1...Ke4
        • 2.Qxf3#
      • 1...Kc3!
    • 1.Qe2+?
      • 1...Kc3
        • 2.Qd2#
      • 1...fxe2+!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qc2#
      • 1...Kc3
        • 2.Qd2#
      • 1...Ke4
        • 2.Qxf3#
      • 1...Qxg2
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(i);SBLOCK::QAR1(B)
    • P(a);N_GUARD::S(E)
  • Tries
    • Try
      • S(E);XP(g)
      • Threat
        • QAR1(B)
      • Vars
        • Q(h);N_GUARD,XP(C)::R1(D),XP(d)
        • S(f);N_GUARD::R(D),XS(f)
      • Refutation
        • S(f);
    • Try
      • R(F);XP(e)
      • Threat
        • QAR1(B)
      • Vars
        • Q(h);N_GUARD,XP(C)::R1(F),XP(d)
        • S(f);S_CUTB(i)::R(F),XP(c)
      • Refutation
        • S(f);
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(B),XP(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(B)
      • Refutation
        • P(c);CHECK,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);P-FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAB1(B),XP(c)
      • Q(h);N_GUARD,XP(C)::QAR1(B),XP(d)
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).