MESON Chess Problem Database

Problem Display
PID: 207999 (8/BNp5/8/prpP2R1/p3k1p1/P5P1/1P1R1PKn/6nQ w - - 0 1)

Pap, Dezso

Vasarnapi Ujsag, 1873

8/BNp5/8/prpP2R1/p3k1p1/P5P1/1P1R1PKn/6nQ

#2

11 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Sxc5#
    • 1...Rb3
      • 2.Sxc5#
    • 1...Rb4
      • 2.Sxc5#
    • 1...Rb6
      • 2.Sxc5#
    • 1...Se2
      • 2.Kxh2#
      • 2.Qb1#
    • 1...Sgf3
      • 2.Qb1#
    • 1...Sh3
      • 2.Kxh2#
      • 2.Qb1#
      • 2.Qe1#
    • 1...Sf1
      • 2.Kxg1#
      • 2.Qh7#
    • 1...Shf3
      • 2.Qh7#
    • 1...c4
      • 2.Rd4#
    • 1...c6
      • 2.Sd6#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Rd4#
      • 1...Rxc5
        • 2.Sxc5#
      • 1...Se2
        • 2.Kxh2#
        • 2.Qb1#
      • 1...Sgf3
        • 2.Qb1#
      • 1...Shf3
        • 2.Qh7#
      • 1...Rb4!
    • 1.Qxg1?
      • threat
        • 2.Qb1#
        • 2.Qe1#
      • 1...Rxb2
        • 2.Sxc5#
        • 2.Qe1#
      • 1...Rb3
        • 2.Sxc5#
      • 1...Sf3
        • 2.Qb1#
      • 1...Sf1!
    • 1.Qxh2?
      • threat
        • 2.Qh7#
      • 1...Rb6
        • 2.Sxc5#
      • 1...Sh3!
  • Keys
    • 1.Bb6!
      • 1...Rxb2
        • 2.Sxc5#
      • 1...Rxb6
        • 2.Sxc5#
      • 1...cxb6
        • 2.Sd6#
      • 1...Rb3
        • 2.Sxc5#
      • 1...Rb4
        • 2.Sxc5#
      • 1...Se2
        • 2.Kxh2#
        • 2.Qb1#
      • 1...Sgf3
        • 2.Qb1#
      • 1...Sh3
        • 2.Kxh2#
        • 2.Qb1#
        • 2.Qe1#
      • 1...Sf1
        • 2.Kxg1#
        • 2.Qh7#
      • 1...Shf3
        • 2.Qh7#
      • 1...c4
        • 2.Rd4#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD,XP(B)::S(K),XP(h)
    • R(g);N_GUARD::S(K),XP(h)
    • S(a);OGATE::QAB(A)
    • S(b);OGATE::QAB(A)
    • P(h);N_GUARD::R1(C)
    • P(i);N_GUARD::S(K)
  • Tries
    • Try
      • B(J);XP(h)
      • Threat
        • R1(C)
      • Vars
        • R(g);XB(J)::S(K),XR(g)
        • S(a);OGATE::QAB(A)
        • S(b);OGATE::QAB(A)
      • Refutation
        • R(g);
    • Try
      • Q(A);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(g);N_GUARD::S(K),XP(h)
        • S(b);::QAB(A)
      • Refutation
        • S(b);
    • Try
      • Q(A);XS(b)
      • Threat
        • QAB(A)
      • Vars
        • R(g);N_GUARD::S(K),XP(h)
      • Refutation
        • S(a);
  • Actual
    • B(J);
    • Vars
      • R(g);N_GUARD,XP(B)::S(K),XP(h)
      • R(g);N_GUARD,XB(J)::S(K),XP(h)
      • P(i);N_GUARD,XB(J)::S(K)
      • R(g);N_GUARD::S(K),XP(h)
      • S(a);OGATE::QAB(A)
      • S(b);OGATE::QAB(A)
      • P(h);N_GUARD::R1(C)
      • P(i);N_GUARD::S(K)
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).