MESON Chess Problem Database

Problem Display
PID: 229036 (8/1K4NB/4pQn1/1Npk4/1P1P1b1R/1P1p1b2/2n1r3/2r1R3 w - - 0 1)

Boros, Sandor

Elbogen, Arpad

2nd Prize, Neue Leipziger Zeitung, 1926

8/1K4NB/4pQn1/1Npk4/1P1P1b1R/1P1p1b2/2n1r3/2r1R3

#2

10 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe5#
      • 2.Qxe6#
    • 1...Rd2
      • 2.Qxe6#
    • 1...Rf2
      • 2.Qxe6#
    • 1...Rg2
      • 2.Qxe6#
    • 1...Rh2
      • 2.Qxe6#
    • 1...Re5
      • 2.Qd8#
    • 1...Be4
      • 2.Qxe6#
    • 1...Bd2
      • 2.Qd8#
    • 1...Be3
      • 2.Qd8#
      • 2.Qxf3#
      • 2.Qxe6#
    • 1...Be5
      • 2.Qxe6#
    • 1...Bd6
      • 2.Sc3#
    • 1...Bh6
      • 2.Qd8#
    • 1...Se3
      • 2.Qxe6#
    • 1...Se5
      • 2.Qxe6#
    • 1...e5
      • 2.Qc6#
  • Tries
    • 1.Qd8+?
      • 1...Bd6
        • 2.Sc3#
        • 2.Sc7#
        • 2.Qxd6#
      • 1...Ke4!
  • Keys
    • 1.dxc5!
      • threat
        • 2.Sc3#
      • 1...Ke4
        • 2.Qxe6#
      • 1...Sxe1
        • 2.Qd4#
      • 1...Sxb4
        • 2.Qd4#
      • 1...Re5
        • 2.Qd8#
      • 1...Bd2
        • 2.Sc7#
      • 1...Be5
        • 2.Qxe6#
      • 1...Sa1
        • 2.Qd4#
      • 1...Sa3
        • 2.Qd4#
      • 1...Se3
        • 2.Qd4#
        • 2.Qxe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Se5
        • 2.Qxe6#
      • 1...e5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 8
  • Sets
    • R(c);N_GUARD::QAB1(G),XP(i)
    • R(c);S_CUTB(f)::QAR(G)
    • B(e);S_CUTR(c)::QAB1(G),XP(i)
    • B(f);N_GUARD::QAR(G)
    • B(f);S_CUTR(c)::QAB1(G),XP(i)
    • B(f);SBLOCK::S(F)
    • S(b);S_CUTR(c)::QAB1(G),XP(i)
    • S(j);S_CUTR(c)::QAB1(G),XP(i)
    • P(i);OGATE::QAB1(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(h);P_SPINB(f),P_SPINR(c),P_SPINS(j),S_FLIGHT
  • Actual
    • P(D);XP(g)
    • Threat
      • S(F)
    • Vars
      • K(h);P_SPINB(f),P_SPINR(c),P_SPINS(j),S_FLIGHT::QAR2(G),XP(i)
      • S(b);N_GUARD,XR(A)::QAR1(G)
      • S(b);N_GUARD,XP(C)::QAR1(G)
      • R(c);S_CUTB(f)::QAR(G)
      • B(f);N_GUARD::S(F)
      • B(f);S_CUTR(c)::QAB1(G),XP(i)
      • S(b);N_GUARD::QAR1(G)
      • S(b);N_GUARD::QAR1(G),XS(b)
      • S(j);S_CUTR(c)::QAB1(G),XP(i)
      • P(i);OGATE,SBLOCK::QAB1(G)
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).