MESON Chess Problem Database

Problem Display
PID: 240071 (q7/2p1N1bp/p7/KbP1p1NQ/1P1k1p2/2R1p3/p1pP3n/B5r1 w - - 0 1)

Mosiashvili, Givi

Pat a Mat, 2012

q7/2p1N1bp/p7/KbP1p1NQ/1P1k1p2/2R1p3/p1pP3n/B5r1

#2

9 + 14

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Se6#
    • 1...Qd5
      • 2.Sf5#
    • 1...f3
      • 2.dxe3#
    • 1...e4
      • 2.Se6#
  • Tries
    • 1.Ra3+?
      • 1...Kc4
        • 2.Qe2#
        • 2.d3#
      • 1...Rxa1!
    • 1.Rxe3+?
      • 1...Kc4
        • 2.Qe2#
      • 1...Rxa1!
    • 1.Qxh7?
      • threat
        • 2.Se6#
      • 1...Rxg5
        • 2.Rxc2#
      • 1...e4
        • 2.Qxg7#
      • 1...Qd5
        • 2.Sf5#
      • 1...Qc8
        • 2.Qe4#
      • 1...Qg8
        • 2.Qe4#
      • 1...Bc4
        • 2.Rd3#
      • 1...Bd7
        • 2.Qd3#
      • 1...Qc6!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Sf5#
      • 1...Rxg5
        • 2.Rxe3#
      • 1...e4
        • 2.Qxg7#
      • 1...Qe4
        • 2.Se6#
      • 1...Qc8
        • 2.Qd5#
      • 1...Bd3
        • 2.Rc4#
      • 1...Bd7
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(n);SBLOCK::S(G)
    • Q(n);SBLOCK::S(I)
    • P(g);N_GUARD::P(B),XP(e)
    • P(i);SBLOCK::S(G)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • R(a);XB(A)
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • K(f);P-FLIGHT::QAB(H)
      • Refutation
        • R(a);XB(A)
    • Try
      • Q(H);XP(m)
      • Threat
        • S(G)
      • Vars
        • R(a);N_GUARD,XS(G)::B(A)+R(C),XP(c)
        • P(i);OGATEB::QAB(H),XB(l)
        • Q(n);SBLOCK::S(I)
        • Q(n);N_GUARD::QAR1(H)
        • B(h);SBLOCK::B(A)+R(C),DCHECK
        • B(h);N_GUARD::QAR1(H)
      • Refutation
        • Q(n);
  • Actual
    • Q(H);
    • Threat
      • S(I)
    • Vars
      • R(a);N_GUARD,XS(G)::B(A)+R(C),XP(e)
      • P(i);OGATEB::QAB(H),XB(l)
      • Q(n);SBLOCK::S(G)
      • Q(n);N_GUARD::QAR1(H)
      • B(h);SBLOCK::B(A)+R(C),DCHECK
      • B(h);N_GUARD::QAR1(H)
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).