MESON Chess Problem Database

Problem Display
PID: 109722 (5RqN/nPpQp3/1Br2b2/R1N1k1p1/7r/5p2/n1B4P/K7 w - - 0 1)

Winawer, Marcin

Tygodnik Illustrowany, 1895

5RqN/nPpQp3/1Br2b2/R1N1k1p1/7r/5p2/n1B4P/K7

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4+
      • 2.Qd4#
    • 1...Qb3
      • 2.Sg6#
    • 1...Qc4
      • 2.Sg6#
    • 1...Qe6
      • 2.Sg6#
    • 1...Qg6
      • 2.Sxg6#
    • 1...Qxf8
      • 2.Sg6#
    • 1...Re4
      • 2.Sd3#
    • 1...Rxc5
      • 2.Bxc7#
    • 1...Bg7
      • 2.Rf5#
    • 1...Bxh8
      • 2.Rf5#
  • Tries
    • 1.Sb3+?
      • 1...Kf4+
        • 2.Qd4#
      • 1...Qd5
        • 2.Sg6#
      • 1...Rc5
        • 2.Bxc7#
      • 1...Sb5!
    • 1.Sa4+?
      • 1...Kf4+
        • 2.Qd4#
      • 1...Qd5
        • 2.Sg6#
      • 1...Rc5
        • 2.Bxc7#
      • 1...Sb5!
    • 1.Sa6+?
      • 1...Kf4+
        • 2.Qd4#
      • 1...Qd5
        • 2.Sg6#
      • 1...Rc5
        • 2.Bxc7#
      • 1...Sb5!
    • 1.Se6+?
      • 1...Rc5
        • 2.Bxc7#
        • 2.Rxc5#
      • 1...Sb5!
    • 1.Bf5?
      • threat
        • 2.Sd3#
      • 1...Rxc5
        • 2.Bxc7#
      • 1...Kf4+!
  • Keys
    • 1.Bg6!
      • threat
        • 2.Sd3#
      • 1...Kf4+
        • 2.Qd4#
      • 1...Qxg6
        • 2.Sxg6#
      • 1...Rxc5
        • 2.Bxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • K(d);CHECK,P_SPINB(g),S_FLIGHT::QAR2(H)
    • Q(k);N_GUARD::S(J)
    • Q(k);N_GUARD::S(J),XQ(k)
    • Q(k);N_GUARD,XR(I)::S(J)
    • R(c);SBLOCK::R(D)+S(E),DCHECK
    • R(f);N_GUARD,P_SPINR(f),XS(E)::B(F),XP(i)
    • B(g);OGATE::R1(I)
    • B(g);OGATE,XS(J)::R1(I)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);CHECK,P_SPINB(g),S_FLIGHT::QAR2(H)
        • Q(k);P_SPINQ(k)::S(J)
        • R(f);P_SPINR(f)::B(F),XP(i)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • S(E);CHECK
      • Vars
        • K(d);CHECK,P_SPINB(g),S_FLIGHT::QAR2(H)
        • Q(k);P_SPINQ(k)::S(J)
        • R(f);P_SPINR(f)::B(F),XP(i)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • S(E);CHECK
      • Vars
        • K(d);CHECK,P_SPINB(g),S_FLIGHT::QAR2(H)
        • Q(k);P_SPINQ(k)::S(J)
        • R(f);P_SPINR(f)::B(F),XP(i)
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • S(E);CHECK
      • Refutation
        • S(h);P_SPINS(h)
    • Try
      • B(B);
      • Threat
        • R(D)+S(E),DCHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f),XS(E)::B(F),XP(i)
      • Refutation
        • K(d);CHECK,S_FLIGHT
  • Actual
    • B(B);
    • Threat
      • R(D)+S(E),DCHECK
    • Vars
      • K(d);CHECK,P_SPINB(g),S_FLIGHT::QAR2(H)
      • Q(k);XB(B)::S(J),XQ(k)
      • R(f);N_GUARD,P_SPINR(f),XS(E)::B(F),XP(i)
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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).