MESON Chess Problem Database

Problem Display
PID: 173666 (4R3/8/8/1Np2b1Q/B2q3p/5r1r/1pP2RNp/1K1kB1b1 w - - 0 1)

Boros, Sandor

L'Italia Scacchistica, 1933

4R3/8/8/1Np2b1Q/B2q3p/5r1r/1pP2RNp/1K1kB1b1

#2

9 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf2
      • 2.Sc3#
    • 1...Qc3
      • 2.Sxc3#
    • 1...Qe5
      • 2.Rd2#
    • 1...Qf6
      • 2.Rd2#
    • 1...Qg7
      • 2.Rd2#
    • 1...Qh8
      • 2.Rd2#
    • 1...Qd2
      • 2.Rxd2#
    • 1...Qd3
      • 2.cxd3#
    • 1...Qxa4
      • 2.Sc3#
      • 2.Rd2#
    • 1...Qc4
      • 2.Rd2#
    • 1...Qe4
      • 2.Sc3#
      • 2.Rd2#
    • 1...Qf4
      • 2.Sc3#
    • 1...Qg4
      • 2.Rd2#
    • 1...Qd5
      • 2.Sc3#
    • 1...Qd6
      • 2.Sc3#
    • 1...Qd7
      • 2.Sc3#
    • 1...Qd8
      • 2.Sc3#
    • 1...Bxc2+
      • 2.Bxc2#
    • 1...Bd3
      • 2.Rd2#
    • 1...Be6
      • 2.c4#
    • 1...Bd7
      • 2.c4#
    • 1...Bc8
      • 2.c4#
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Rd2#
      • 1...Bxc2+
        • 2.Bxc2#
      • 1...Bxf2!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Sc3#
      • 1...Bxc2+
        • 2.Bxc2#
      • 1...Bd3
        • 2.Rd2#
      • 1...Bg4
        • 2.c3#
      • 1...Bd7
        • 2.c4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 17
  • Sets
    • Q(g);N_GUARD,XR(D)::S(G)
    • Q(g);N_GUARD::S(G),XQ(g)
    • Q(g);N_GUARD::R1(D)
    • Q(g);N_GUARD::R1(D),XQ(g)
    • Q(g);::B(F)+P(C),XQ(g)
    • Q(g);N_GUARD::S(G)
    • Q(g);N_GUARD,N_SPINR(e)::R1(D)
    • B(j);CHECK,OGATE,P_SPINB(j),XP(C)::B(F),XB(j)
    • B(j);S_CUTQ(g)::R1(D)
    • B(j);N_PINP(C)::B(F)+P(C)
  • Tries
    • Try
      • S(G);XQ(g)
      • Threat
        • R1(D)
      • Vars
        • B(j);CHECK,OGATE,P_SPINB(j),XP(C)::B(F),XB(j)
      • Refutation
        • B(b);XR(D)
  • Actual
    • R(I);P_PINQ(g)
    • Threat
      • S(G)
    • Vars
      • B(j);CHECK,OGATE,P_SPINB(j),XP(C)::B(F),XB(j)
      • B(j);N_SPINQ(g),S_CUTQ(g)::R1(D)
      • B(j);N_PINP(C),N_SPINR(e)::B(F)+P(C)
      • B(j);N_PINP(C),N_SPINQ(g)::B(F)+P(C)
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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).