MESON Chess Problem Database

Problem Display
PID: 224213 (8/5p2/R4K2/2kp4/3N3Q/2rP4/nB2P3/8 w - - 0 1)

Paclt, Josef

Ceska Thalia, 1888

8/5p2/R4K2/2kp4/3N3Q/2rP4/nB2P3/8

#2

7 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3+?
      • 1...Kb5
        • 2.Qa4#
      • 1...Rxb3!
    • 1.Se6+?
      • 1...Kb5
        • 2.Qa4#
      • 1...fxe6!
    • 1.Ba3+?
      • 1...Sb4
        • 2.Rc6#
      • 1...Rxa3!
  • Keys
    • 1.Qe1!
      • 1...Kb4
        • 2.Ba3#
      • 1...Kxd4
        • 2.Qf2#
        • 2.Qg1#
      • 1...Rxd3
        • 2.Rc6#
      • 1...Rc1
        • 2.Rc6#
        • 2.Qa5#
      • 1...Rc2
        • 2.Rc6#
        • 2.Qa5#
      • 1...Ra3
        • 2.Rc6#
      • 1...Rb3
        • 2.Rc6#
      • 1...Rc4
        • 2.Rc6#
        • 2.Qa5#
      • 1...Sc1
        • 2.Qxc3#
      • 1...Sb4
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
      • Refutation
        • R(b);XS(D)
    • Try
      • S(D);CHECK
      • Vars
        • K(c);P-FLIGHT::QAB1(E)
      • Refutation
        • P(e);XS(D)
    • Try
      • B(A);CHECK
      • Vars
        • S(a);P_SPINS(a)::R1(F)
      • Refutation
        • R(b);XB(A)
  • Actual
    • Q(E);
    • Vars
      • K(c);P_SPINR(b),S_FLIGHT::B(A)
      • R(b);XP(C)::R1(F)
      • R(b);::R1(F)
      • S(a);N_GUARD::QAR2(E),XR(b)
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).