MESON Chess Problem Database

Problem Display
PID: 181758 (1R6/2Q5/8/8/kN1rn3/r3n3/8/2bb2K1 w - - 0 1)

Rasovsky, Josef

Narodni listy, 1905

1R6/2Q5/8/8/kN1rn3/r3n3/8/2bb2K1

#2

4 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rb3
      • 2.Qa7#
    • 1...Bb3
      • 2.Qa7#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Qa5#
        • 2.Qa7#
      • 1...Rb4
        • 2.Rxb4#
      • 1...Rd5
        • 2.Rb4#
      • 1...Rd7
        • 2.Rb4#
        • 2.Qa5#
      • 1...Be2
        • 2.Qa5#
      • 1...Sc4
        • 2.Rb4#
      • 1...Sc5
        • 2.Qa5#
      • 1...Bd2!
    • 1.Qc6+?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa8#
        • 2.Qa6#
      • 1...Kb3!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Qa7#
      • 1...Rb4
        • 2.Rxb4#
      • 1...Bd2
        • 2.Sb2#
      • 1...Rd5
        • 2.Rb4#
      • 1...Rd6
        • 2.Rb4#
      • 1...Rd7
        • 2.Rb4#
      • 1...Sc4
        • 2.Rb4#
      • 1...Sc5
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • R(c);SBLOCK::QAR(C)
    • B(b);SBLOCK::QAR(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);N_GUARD::R1(D),XR(f)
        • R(f);N_GUARD::R1(D)
        • B(b);::QAR1(C)
        • S(d);S_CUTR(f)::R1(D)
        • S(g);::QAR1(C)
      • Refutation
        • B(a);
    • Try
      • Q(C);CHECK
      • Refutation
        • K(e);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAR(C)
    • Vars
      • R(f);N_GUARD::R1(D),XR(f)
      • B(a);N_GUARD::S(B)
      • R(f);N_GUARD::R1(D)
      • S(d);S_CUTR(f)::R1(D)
      • S(g);N_GUARD::S(B),XS(g)
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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).