MESON Chess Problem Database

Problem Display
PID: 158500 (8/7N/B1Rpp1K1/4b2R/4k3/1P1rn1Q1/4P3/3Nn1B1 w - - 0 1)

Rosolak, Wladyslaw

Sachove umeni (Ceskoslovensky sach), 1954

8/7N/B1Rpp1K1/4b2R/4k3/1P1rn1Q1/4P3/3Nn1B1

#2

10 + 7

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sc3#
    • 1...Rd5
      • 2.Qxe3#
    • 1...Bd4
      • 2.Sf2#
    • 1...Sd5
      • 2.Sg5#
    • 1...d5
      • 2.Qxe5#
  • Tries
    • 1.Sf6+?
      • 1...Kd4
        • 2.Rc4#
      • 1...Bxf6!
    • 1.Rxe5+?
      • 1...Kd4
        • 2.Rc4#
        • 2.Rxd6#
        • 2.Qf4#
      • 1...dxe5!
    • 1.Rc4+?
      • 1...Kd5
        • 2.Sf6#
        • 2.Bb7#
      • 1...Rd4
        • 2.Sc3#
      • 1...Bd4
        • 2.Sf2#
        • 2.Sf6#
      • 1...Sxc4!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Rc4#
      • 1...Sxf3!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Rc4#
      • 1...Kd4
        • 2.Rc4#
      • 1...Kd5
        • 2.Rc4#
      • 1...Rd4
        • 2.Sc3#
      • 1...Rd5
        • 2.Qxe3#
      • 1...Bd4
        • 2.Sf2#
      • 1...Sc4
        • 2.Rxc4#
      • 1...Sd5
        • 2.Sg5#
      • 1...d5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);N_GUARD,SBLOCK,S_CUTB(e)::S(A)
    • R(b);N_GUARD,SBLOCK::QAR1(E),XS(c)
    • B(e);SBLOCK::S(A)
    • S(c);SBLOCK::S(J)
    • P(f);N_GUARD::QAR1(E),XB(e)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINS(c)::R1(H)
      • Refutation
        • B(e);XS(J)
    • Try
      • R(F);CHECK,XB(e)
      • Refutation
        • P(f);XR(F)
    • Try
      • R(H);CHECK
      • Vars
        • R(b);P_SPINR(b)::S(A)
      • Refutation
        • S(c);XR(H)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINS(c)::R1(H)
      • Refutation
        • S(a);XQ(E)
  • Actual
    • B(G);
    • Threat
      • B(G)+R(H),DCHECK
    • Vars
      • K(d);P-FLIGHT,P_SPINS(c)::R1(H)
      • K(d);P_SPINB(e),S_FLIGHT::B(G)+R(H)
      • R(b);N_GUARD,SBLOCK,S_CUTB(e)::S(A)
      • R(b);N_GUARD,SBLOCK::QAR1(E),XS(c)
      • B(e);SBLOCK::S(A)
      • S(c);::B(G)+R(H),DCHECK,XS(c)
      • S(c);SBLOCK::S(J)
      • P(f);N_GUARD::QAR1(E),XB(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).