MESON Chess Problem Database

Problem Display
PID: 271673 (8/pK1Q4/rp1P3r/2pk4/1p4N1/1PR2P2/3nNB1q/1B2n3 w - - 0 1)

Gordian, Yury Markovic

Buletin Problemistic, 1976

8/pK1Q4/rp1P3r/2pk4/1p4N1/1PR2P2/3nNB1q/1B2n3

#2

10 + 10

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Sf4#
    • 1...Qf4
      • 2.Sxf4#
    • 1...Qxd6
      • 2.Sf4#
    • 1...Qh1
      • 2.Sf4#
    • 1...Qg2
      • 2.Sf4#
    • 1...Qh3
      • 2.Sf4#
    • 1...Qh4
      • 2.Sf4#
    • 1...Qh5
      • 2.Sf4#
    • 1...Re6
      • 2.Qc6#
    • 1...Sg2
      • 2.Rd3#
    • 1...Sd3
      • 2.Rxd3#
    • 1...Sf1
      • 2.Be4#
    • 1...Sxb3
      • 2.Be4#
    • 1...Sc4
      • 2.Be4#
      • 2.bxc4#
    • 1...Se4
      • 2.Bxe4#
      • 2.fxe4#
    • 1...bxc3
      • 2.Sxc3#
    • 1...b5
      • 2.Rxc5#
  • Tries
    • 1.Sf6+?
      • 1...Ke5
        • 2.Qe7#
      • 1...Rxf6!
    • 1.Qf5+?
      • 1...Qe5
        • 2.Qxe5#
      • 1...Kxd6!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Qc6#
      • 1...Qxd6
        • 2.Sf4#
      • 1...Rxd6
        • 2.Be6#
      • 1...Rh7
        • 2.Be6#
      • 1...b5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 13
  • Sets
    • Q(c);N_GUARD::S(B)
    • Q(c);N_GUARD::S(B),XQ(c)
    • Q(c);N_GUARD,P_SPINQ(c),XP(H)::S(B)
    • R(i);SBLOCK::QAB1(J)
    • S(a);N_GUARD::R(E)
    • S(a);N_GUARD::R(E),XS(a)
    • S(b);N_GUARD::B(A)
    • S(b);N_GUARD,XP(D)::B(A)
    • P(d);XR(E)::S(B),XP(d)
    • P(h);N_GUARD::R1(E),XP(e)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(f);P-FLIGHT,S_CUTR(i)::QAR2(J)
      • Refutation
        • R(i);XS(G)
    • Try
      • Q(J);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAR1(J),XQ(c)
      • Refutation
        • K(f);P-FLIGHT,XP(H)
  • Actual
    • B(A);
    • Threat
      • QAB1(J)
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),XP(H)::S(B)
      • R(i);N_GUARD,P_SPINR(i),XP(H)::B(A)
      • R(i);N_GUARD,P_PINQ(J)::B(A)
      • P(h);N_GUARD::R1(E),XP(e)
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).