MESON Chess Problem Database

Problem Display
PID: 31189 (8/3Q4/1K1P4/3P2R1/1p2k3/7R/5n1B/8 w - - 0 1)

Trcala, Stanislav

Tijdschrift vd NSB, 1903

8/3Q4/1K1P4/3P2R1/1p2k3/7R/5n1B/8

#2

7 + 3

3437 Stanislav Trcala Sachovy odkaz 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Qg4#
    • 1...Sh1
      • 2.Qg4#
    • 1...Sg4
      • 2.Qxg4#
    • 1...b3
      • 2.Qa4#
  • Tries
    • 1.Rg4+?
      • 1...Kxd5
        • 2.Rh5#
        • 2.Qf5#
        • 2.Qf7#
      • 1...Sxg4!
    • 1.Qb5?
      • threat
        • 2.Qc4#
        • 2.Qxb4#
      • 1...Kd4
        • 2.Qxb4#
      • 1...Sd3
        • 2.Qxd3#
        • 2.Qc4#
      • 1...b3
        • 2.Qa4#
        • 2.Qc4#
        • 2.Qb4#
      • 1...Sxh3!
  • Keys
    • 1.Bg1!
      • 1...Kd4
        • 2.Qg4#
      • 1...Kf4
        • 2.Qf5#
      • 1...Sxh3
        • 2.Qf5#
      • 1...Sd1
        • 2.Qg4#
        • 2.Qf5#
      • 1...Sh1
        • 2.Qg4#
        • 2.Qf5#
      • 1...Sd3
        • 2.Qf5#
      • 1...Sg4
        • 2.Qxg4#
        • 2.Qf5#
      • 1...b3
        • 2.Qa4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAR2(G)
    • S(a);N_GUARD::QAR2(G),XS(a)
    • P(b);OGATEB::QAR(G)
  • Tries
    • Try
      • R(D);CHECK
      • Refutation
        • S(a);XR(D)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR2(G),XP(b)
      • Refutation
        • S(a);XR(B)
  • Actual
    • B(A);
    • Vars
      • K(c);P-FLIGHT,P_SPINS(a)::QAR(G)
      • K(c);P-FLIGHT::QAR1(G)
      • S(a);XR(B)::QAB1(G)
      • S(a);::QAB1(G)
      • P(b);OGATEB::QAR(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).