MESON Chess Problem Database

Problem Display
PID: 178696 (1r6/3Q4/3b2b1/1ppk2p1/2RpR1P1/2P5/1N1P1N2/4K3 w - - 0 1)

Mosiashvili, Givi

Phenix, 2018

1r6/3Q4/3b2b1/1ppk2p1/2RpR1P1/2P5/1N1P1N2/4K3

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Qxb7#
    • 1...Ra8
      • 2.Qb7#
    • 1...Rd8
      • 2.Qb7#
    • 1...Re8
      • 2.Qb7#
    • 1...Rf8
      • 2.Qb7#
    • 1...Rg8
      • 2.Qb7#
    • 1...Rh8
      • 2.Qb7#
  • Tries
    • 1.Sbd3?
      • threat
        • 2.Rxc5#
      • 1...Kxc4
        • 2.Qe6#
      • 1...bxc4
        • 2.Re5#
      • 1...Rc8!
    • 1.Rexd4+?
      • 1...Ke5
        • 2.Qxd6#
      • 1...cxd4!
  • Keys
    • 1.Sfd3!
      • threat
        • 2.Re5#
      • 1...Kxe4
        • 2.Qc6#
      • 1...Bxe4
        • 2.Rxc5#
      • 1...Re8
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(h);N_GUARD::QAB(I),XR(h)
    • R(h);N_GUARD::QAB(I)
    • R(h);N_GUARD,P_PINR(G)::QAB(I)
  • Tries
    • Try
      • S(B);
      • Threat
        • R1(F),XP(c)
      • Vars
        • K(d);N_SPINB(f),P_SPINP(a),S_FLIGHT,XR(F)::QAB(I)
        • P(b);SBLOCK,XR(F)::R1(G)
      • Refutation
        • R(h);
    • Try
      • R(G);CHECK,XP(a)
      • Vars
        • K(d);N_SPINB(f),P-FLIGHT::QAB1(I),XB(f)
      • Refutation
        • P(c);XR(G)
  • Actual
    • S(D);
    • Threat
      • R1(G)
    • Vars
      • K(d);N_SPINB(f),P_SPINP(a),S_FLIGHT,XR(G)::QAB(I)
      • B(g);SBLOCK,XR(G)::R1(F),XP(c)
      • R(h);N_GUARD,P_PINR(G)::QAB(I)
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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).