MESON Chess Problem Database

Problem Display
PID: 136439 (5nK1/r5p1/2RN4/3p1P2/1p1kN2n/1P2p2b/2P4B/r5Q1 w - - 0 1)

Satkus, Vidmantas

The Problemist Supplement, 2010

5nK1/r5p1/2RN4/3p1P2/1p1kN2n/1P2p2b/2P4B/r5Q1

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qxd1#
    • 1...R1a2
      • 2.Qd1#
    • 1...R1a3
      • 2.Qd1#
    • 1...R1a4
      • 2.Qd1#
    • 1...R1a5
      • 2.Qd1#
    • 1...R1a6
      • 2.Qd1#
    • 1...R7a2
      • 2.Qxg7#
    • 1...R7a3
      • 2.Qxg7#
    • 1...R7a4
      • 2.Qxg7#
    • 1...R7a5
      • 2.Qxg7#
    • 1...R7a6
      • 2.Qxg7#
    • 1...Rb7
      • 2.Qxa1#
    • 1...Rc7
      • 2.Qxa1#
    • 1...Rd7
      • 2.Qxa1#
    • 1...Re7
      • 2.Qxa1#
    • 1...Rf7
      • 2.Qxa1#
    • 1...Ra8
      • 2.Qxg7#
  • Tries
    • 1.Sd2?
      • threat
        • 2.Sb5#
      • 1...R7a5
        • 2.Qxg7#
      • 1...Rb7
        • 2.Qxa1#
      • 1...Bf1
        • 2.Qg4#
      • 1...R1a5!
    • 1.Sc3?
      • threat
        • 2.Se2#
        • 2.Scb5#
        • 2.Sdb5#
      • 1...Re1
        • 2.Scb5#
        • 2.Sdb5#
      • 1...R1a5
        • 2.Se2#
        • 2.Qd1#
      • 1...R7a5
        • 2.Se2#
        • 2.Qxg7#
      • 1...Rb7
        • 2.Se2#
      • 1...Bf1
        • 2.Qg4#
      • 1...Bg4
        • 2.Scb5#
        • 2.Sdb5#
        • 2.Qxg4#
      • 1...bxc3!
    • 1.Sg5?
      • threat
        • 2.Sb5#
      • 1...R1a5
        • 2.Qd1#
      • 1...Rb7
        • 2.Qxa1#
      • 1...Bf1
        • 2.Qg4#
      • 1...R7a5!
  • Keys
    • 1.Sf2!
      • threat
        • 2.Sb5#
      • 1...exf2
        • 2.Qxf2#
      • 1...e2
        • 2.Sd1#
      • 1...R1a5
        • 2.Qd1#
      • 1...R7a5
        • 2.Qxg7#
      • 1...Rb7
        • 2.Qxa1#
      • 1...Bf1
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 14
  • Sets
    • R(a);N_GUARD::QAR(A),XR(a)
    • R(a);N_GUARD::QAR(A)
    • R(h);N_GUARD::QAB(A),XP(i)
    • R(h);N_GUARD::QAB(A),XR(a)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(H)
      • Vars
        • R(h);N_GUARD::QAB(A),XP(i)
        • R(h);N_GUARD::QAB(A),XR(a)
        • B(c);N_GUARD::QAR(A)
      • Refutation
        • R(a);
    • Try
      • S(E);
      • Threat
        • DUALS(3)
      • Vars
        • R(h);::S(E)
        • B(c);N_GUARD::QAR(A)
      • Refutation
        • P(d);XS(E)
    • Try
      • S(E);
      • Threat
        • S(H)
      • Vars
        • R(a);N_GUARD::QAR(A)
        • R(h);N_GUARD::QAB(A),XR(a)
        • B(c);N_GUARD::QAR(A)
      • Refutation
        • R(h);
  • Actual
    • S(E);N_PINP(b)
    • Threat
      • S(H)
    • Vars
      • P(b);OGATE,P_SPINP(b),XS(E)::QAB(A),XP(b)
      • P(b);::QAB(A)+S(E)
      • R(a);N_GUARD::QAR(A)
      • R(h);N_GUARD::QAB(A),XP(i)
      • R(h);N_GUARD::QAB(A),XR(a)
      • B(c);N_GUARD::QAR(A)
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).