MESON Chess Problem Database

Problem Display
PID: 194434 (5R2/2pR2pK/1Q5p/1P1NbN1r/4k1p1/1b2P1r1/2n1P2B/8 w - - 0 1)

Mosiashvili, Givi

Shakhmatnaya kompozitsiya, 2019

5R2/2pR2pK/1Q5p/1P1NbN1r/4k1p1/1b2P1r1/2n1P2B/8

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.Sc3#
  • Tries
    • 1.Re8?
      • threat
        • 2.Sxg3#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Rxe3
        • 2.Rxe5#
      • 1...Rxf5
        • 2.Sc3#
      • 1...Rg1
        • 2.Rxe5#
      • 1...Rg2
        • 2.Rxe5#
      • 1...Rf3
        • 2.Rxe5#
      • 1...Rgh3
        • 2.Rxe5#
      • 1...Rhh3!
    • 1.Qd4+?
      • 1...Sxd4
        • 2.Sc3#
      • 1...Bxd4!
    • 1.Qe6?
      • threat
        • 2.Sc3#
        • 2.Sxg3#
      • 1...Rxe3
        • 2.Qxe5#
      • 1...Rxf5
        • 2.Qxf5#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Rg1
        • 2.Sc3#
        • 2.Qxe5#
      • 1...Rg2
        • 2.Sc3#
        • 2.Qxe5#
      • 1...Rf3
        • 2.Sc3#
        • 2.Qxe5#
      • 1...Rgh3
        • 2.Sc3#
        • 2.Qxe5#
      • 1...Rhh3
        • 2.Sc3#
      • 1...Sxe3!
  • Keys
    • 1.Re7!
      • threat
        • 2.Sc3#
      • 1...Kxd5
        • 2.Qc6#
      • 1...Rxe3
        • 2.Rxe5#
      • 1...Bxd5
        • 2.Sxg3#
      • 1...Sxe3
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(a);S_CUTB(f)::S(E)
  • Tries
    • Try
      • R(J);P_PINB(f)
      • Threat
        • S(F),XR(c)
      • Vars
        • K(d);N_SPINB(f),OGATEB,S_FLIGHT,XS(F)::QAB1(G)
        • R(c);XP(C)::R1(J),XB(f)
        • R(g);SBLOCK,XS(F)::S(E)
        • R(c);::R1(J),XB(f)
      • Refutation
        • R(g);
    • Try
      • Q(G);CHECK
      • Vars
        • S(a);XQ(G)::S(E)
      • Refutation
        • B(f);XQ(G)
    • Try
      • Q(G);P_PINB(f)
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XP(C)::QAR1(G),XB(f)
        • R(g);OGATE,XS(F)::QAB1(G),XR(g)
        • B(b);OGATE,XS(E)::QAB1(G),XB(b)
        • R(g);::S(E)
      • Refutation
        • S(a);XP(C)
  • Actual
    • R(H);P_PINB(f)
    • Threat
      • S(E)
    • Vars
      • K(d);N_SPINB(f),OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • R(c);XP(C)::R1(H),XB(f)
      • B(b);SBLOCK,XS(E)::S(F),XR(c)
      • S(a);N_GUARD,XP(C)::QAR1(G)
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).