MESON Chess Problem Database

Problem Display
PID: 267402 (N7/2Kp1Q1B/pR1Bq3/r1bk1p1p/2R2P1r/1P1P1p2/3nN3/3n4 w - - 0 1)

Parcerisa, Jose Antonio Lopez

Zaldo MT (Problemas), 2019

N7/2Kp1Q1B/pR1Bq3/r1bk1p1p/2R2P1r/1P1P1p2/3nN3/3n4

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf4
      • 2.Sxf4#
    • 1...Ra1
      • 2.Rxc5#
    • 1...Ra2
      • 2.Rxc5#
    • 1...Ra3
      • 2.Rxc5#
    • 1...Ra4
      • 2.Rxc5#
    • 1...Ba3
      • 2.Rd4#
    • 1...Bb4
      • 2.Rd4#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bxb6+
      • 2.Sxb6#
    • 1...Bxd6+
      • 2.Rxd6#
    • 1...Sb2
      • 2.Sc3#
    • 1...Sf2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Se3
      • 2.Sc3#
    • 1...Sxc4
      • 2.bxc4#
  • Tries
    • 1.Qxf5+?
      • 1...Qe5
        • 2.Bg8#
        • 2.Qxe5#
      • 1...Qxf5!
  • Keys
    • 1.Bg8!
      • threat
        • 2.Qxf5#
      • 1...Bxb6+
        • 2.Sxb6#
      • 1...Bxd6+
        • 2.Rxd6#
      • 1...Qxf7
        • 2.Bxf7#
      • 1...Rxf4
        • 2.Sxf4#
      • 1...Sxc4
        • 2.bxc4#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Se3
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(d);XP(E)::S(A),XR(d)
    • R(e);N_GUARD::R1(D),XB(f)
    • B(f);N_GUARD::R1(D)
    • B(f);N_GUARD::R1(D),XB(f)
    • B(f);CHECK,XR(F)::S(K),XB(f)
    • B(f);CHECK,OGATE,XB(G)::R1(F),XB(f)
    • S(a);N_GUARD::S(A)
    • S(a);N_GUARD::S(A),XS(a)
    • S(b);OGATE,XR(D)::P(B),XS(b)
  • Tries
    • Try
      • Q(I);CHECK,N_PINQ(k),XP(h)
      • Refutation
        • Q(k);XQ(I)
  • Actual
    • B(J);
    • Threat
      • QAR2(I),XP(h)
    • Vars
      • B(f);CHECK,XR(F)::S(K),XB(f)
      • B(f);CHECK,OGATE,XB(G)::R1(F),XB(f)
      • Q(k);OGATE,XQ(I)::B(J),XQ(k)
      • R(d);XP(E)::S(A),XR(d)
      • S(b);OGATE,XR(D)::P(B),XS(b)
      • B(f);N_GUARD::R1(D),XB(f)
      • S(a);N_GUARD::S(A)
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).