MESON Chess Problem Database

Problem Display
PID: 109757 (2R2Bn1/b1Nprp2/p1Pk4/Nb2p1pK/1P6/8/3rpQ2/8 w - - 0 1)

Zalewski, Mieczyzlaw

Szachy, 1975

2R2Bn1/b1Nprp2/p1Pk4/Nb2p1pK/1P6/8/3rpQ2/8

#2

8 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc6
      • 2.Sc4#
    • 1...Bc5
      • 2.Qxc5#
      • 2.bxc5#
    • 1...Bb8
      • 2.Qc5#
    • 1...Sf6+
      • 2.Qxf6#
    • 1...Sh6
      • 2.Qf6#
    • 1...e4
      • 2.Qg3#
      • 2.Qh2#
  • Tries
    • 1.Bxe7+?
      • 1...Sxe7
        • 2.Qf6#
      • 1...Kxe7!
    • 1.Qf3?
      • threat
        • 2.Sb7#
      • 1...Sf6+
        • 2.Qxf6#
      • 1...Bxc6
        • 2.Sc4#
      • 1...e4
        • 2.Qg3#
      • 1...Rd5
        • 2.Qxd5#
      • 1...dxc6!
    • 1.Qxf7?
      • threat
        • 2.Se8#
      • 1...Sf6+
        • 2.Qxf6#
      • 1...dxc6
        • 2.Qe6#
      • 1...e4!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qxd7#
      • 1...Sf6+
        • 2.Qxf6#
      • 1...Bxc6
        • 2.Sc4#
      • 1...dxc6
        • 2.Sb7#
      • 1...e4
        • 2.Se8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(c);N_GUARD,SBLOCK,XP(E)::S(C)
    • B(h);N_GUARD::QAB1(A)
    • S(l);CHECK,N_GUARD::QAR2(A),XS(l)
    • S(l);N_GUARD::QAR2(A)
  • Tries
    • Try
      • B(H);CHECK,XR(j)
      • Vars
        • S(l);XB(H)::QAR2(A)
      • Refutation
        • K(g);S_FLIGHT,XB(H)
    • Try
      • Q(A);
      • Threat
        • S(C)
      • Vars
        • S(l);CHECK,N_GUARD::QAR2(A),XS(l)
        • B(c);N_GUARD,XP(E)::S(C)
        • P(d);OGATEB::QAB(A)
        • R(a);N_GUARD::QAR1(A),XR(a)
      • Refutation
        • P(i);XP(E)
    • Try
      • Q(A);XP(k)
      • Threat
        • S(F)
      • Vars
        • S(l);CHECK,N_GUARD::QAR2(A),XS(l)
        • P(i);N_GUARD,XP(E)::QAR1(A)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(i)
    • Vars
      • S(l);CHECK,N_GUARD::QAR2(A),XS(l)
      • B(c);N_GUARD,SBLOCK,XP(E)::S(C)
      • P(i);SBLOCK,XP(E)::S(C)
      • P(d);::S(F)
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).