MESON Chess Problem Database

Problem Display
PID: 22523 (n7/1R6/P1k5/4Q3/4Kn2/8/8/8 w - - 0 1)

Stocchi, Ottavio

Magyar Sakkvilag, 1933

n7/1R6/P1k5/4Q3/4Kn2/8/8/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.Qd5#
    • 1...Sg2
      • 2.Qd5#
    • 1...Sd3
      • 2.Qd5#
    • 1...Sh3
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sh5
      • 2.Qd5#
    • 1...Se6
      • 2.Qd5#
    • 1...Sg6
      • 2.Qd5#
    • 1...Sb6
      • 2.Rc7#
    • 1...Sc7
      • 2.Qxc7#
  • Tries
    • 1.Kd4?
      • threat
        • 2.Qc5#
      • 1...Se6+
        • 2.Qxe6#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Sd3
        • 2.Qf6#
        • 2.Qd5#
        • 2.Qe6#
      • 1...Sd5
        • 2.Qxd5#
        • 2.Qe6#
      • 1...Se2+!
    • 1.Kxf4?
      • 1...Sb6
        • 2.Rc7#
      • 1...Sc7!
    • 1.Qa5?
      • 1...Sc7
        • 2.Qxc7#
      • 1...Se2
        • 2.Qd5#
      • 1...Sg2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sh3
        • 2.Qd5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sh5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Kd6!
    • 1.a7?
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Se2
        • 2.Qd5#
      • 1...Sg2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sh3
        • 2.Qd5#
      • 1...Sh5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...Sb6
        • 2.Rc7#
      • 1...Kxb7!
  • Keys
    • 1.Qd4!
      • 1...Sd5
        • 2.Qxd5#
      • 1...Sb6
        • 2.Qxb6#
      • 1...Se2
        • 2.Qd5#
      • 1...Sg2
        • 2.Qd5#
      • 1...Sd3
        • 2.Qd5#
      • 1...Sh3
        • 2.Qd5#
      • 1...Sh5
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qd5#
      • 1...Sc7
        • 2.Rb6#

This anticipates 70790(1996)

There are these versions: 28095

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(B)
    • S(a);N_GUARD::QAB1(B),XS(a)
    • S(c);N_GUARD,SBLOCK::R1(D)
    • S(c);N_GUARD::QAR1(B),XS(c)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • S(a);CHECK,N_GUARD::QAR2(B),XS(a)
        • S(c);N_GUARD::QAR1(B),XS(c)
      • Refutation
        • S(a);CHECK
    • Try
      • K(A);P-FLIGHT,XS(a)
      • Vars
        • S(c);N_GUARD,SBLOCK::R1(D)
      • Refutation
        • S(c);
    • Try
      • Q(B);
      • Vars
        • S(c);N_GUARD::QAR1(B),XS(c)
        • S(a);N_GUARD::QAB1(B)
        • S(a);N_GUARD::QAB1(B),XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(C);
      • Vars
        • S(a);N_GUARD::QAB1(B),XS(a)
        • S(c);N_GUARD::QAR1(B),XS(c)
        • S(a);N_GUARD::QAB1(B)
        • S(c);N_GUARD,SBLOCK::R1(D)
      • Refutation
        • K(b);S_FLIGHT,XR(D)
  • Actual
    • Q(B);
    • Vars
      • S(a);N_GUARD::QAB1(B),XS(a)
      • S(c);N_GUARD::QAR1(B),XS(c)
      • S(a);N_GUARD::QAB1(B)
      • S(c);N_GUARD,SBLOCK::R1(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).