MESON Chess Problem Database

Problem Display
PID: 162528 (8/8/bQ6/8/2B2pRB/5PnK/2NRPP2/4Nk2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Die Schwalbe, 2015

8/8/bQ6/8/2B2pRB/5PnK/2NRPP2/4Nk2

#2

11 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qb1#
      • 1...Kg1
        • 2.Rd1#
        • 2.Qb1#
      • 1...Sxe2
        • 2.Rd1#
      • 1...Bb5!
    • 1.Bxa6?
      • 1...Sxe2
        • 2.Bxe2#
      • 1...Sh1
        • 2.e3#
        • 2.e4#
      • 1...Se4
        • 2.e3#
      • 1...Sf5
        • 2.e3#
        • 2.e4#
      • 1...Sh5
        • 2.e3#
        • 2.e4#
      • 1...Kg1!
    • 1.Rd1?
      • threat
        • 2.Sg2#
      • 1...Kg1
        • 2.Sd3#
      • 1...Bxc4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Sd3#
      • 1...Kg1
        • 2.Sd3#
      • 1...Kxf2
        • 2.Sd3#
      • 1...Sxe2
        • 2.Sg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR(K)
      • Vars
        • S(b);SBLOCK,XP(D)::R(C)
      • Refutation
        • B(d);
    • Try
      • B(H);XB(d)
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(D)::B(H),XS(b)
        • S(b);N_GUARD::B(H)+P(D)
      • Refutation
        • K(a);P-FLIGHT,P_SPINS(b)
    • Try
      • R(C);
      • Threat
        • R(C)+S(A)
      • Vars
        • K(a);P-FLIGHT,P_SPINS(b)::R(C)+S(A)
      • Refutation
        • B(d);XB(H)
  • Actual
    • Q(K);
    • Threat
      • QAR(K)+S(A)
    • Vars
      • K(a);P-FLIGHT,P_SPINS(b)::QAR(K)+S(A)
      • K(a);P-FLIGHT,P_SPINS(b),XP(E)::S(A)
      • S(b);P_SPINS(b),XP(D)::QAR(K)+S(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).