MESON Chess Problem Database

Problem Display
PID: 174251 (2B1b1rn/4Np2/1n2pP1B/1p3R1K/q3k3/1pPp1ppN/4r3/6Q1 w - - 0 1)

Buchner, Rudolf

Promadas, 1929

2B1b1rn/4Np2/1n2pP1B/1p3R1K/q3k3/1pPp1ppN/4r3/6Q1

#2

9 + 14

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qd4#
    • 1...Qa2
      • 2.Qd4#
    • 1...Qa3
      • 2.Qd4#
    • 1...Qd4
      • 2.Qxd4#
    • 1...Qa5
      • 2.Qd4#
    • 1...Qa6
      • 2.Qd4#
    • 1...Qa7
      • 2.Qd4#
    • 1...Qa8
      • 2.Qd4#
    • 1...Re1
      • 2.Qxe1#
    • 1...Ra2
      • 2.Qe3#
    • 1...Rb2
      • 2.Qe3#
    • 1...Rc2
      • 2.Qe3#
    • 1...Rd2
      • 2.Qe3#
    • 1...Rg2
      • 2.Qe3#
    • 1...Rh2
      • 2.Qe3#
    • 1...Re3
      • 2.Qxe3#
    • 1...Rg5+
      • 2.Sxg5#
    • 1...Rf8
      • 2.Sg5#
    • 1...Sc4
      • 2.Qd4#
    • 1...Sd7
      • 2.Bb7#
    • 1...Sg6
      • 2.Sg5#
    • 1...d2
      • 2.Qb1#
    • 1...f2
      • 2.Qg2#
    • 1...b4
      • 2.Qd4#
  • Keys
    • 1.Bf4!
      • threat
        • 2.Re5#
      • 1...Rg5+
        • 2.Sxg5#
      • 1...exf5
        • 2.Bxf5#
      • 1...d2
        • 2.Qb1#
      • 1...f2
        • 2.Qg2#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Sc4
        • 2.Qd4#
      • 1...Sd7
        • 2.Bb7#
      • 1...Sg6
        • 2.Sg5#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 17
  • Sets
    • Q(f);N_GUARD::QAR1(A)
    • Q(f);N_GUARD::QAR1(A),XQ(f)
    • R(a);OGATEB::QAR(A),XR(a)
    • R(a);N_GUARD::QAR1(A)
    • R(a);N_GUARD,P_PINS(C)::QAR1(A)
    • R(a);N_GUARD::QAR1(A),XR(a)
    • R(m);CHECK,N_GUARD::S(C),XR(m)
    • R(m);N_GUARD::S(C)
    • S(i);S_CUTQ(f)::QAR1(A)
    • S(i);N_GUARD,S_CUTB(l)::B(I)
    • S(n);S_CUTR(m)::S(C)
    • P(c);OGATEB::QAB(A)
    • P(d);OGATEB::QAB(A)
    • P(h);S_CUTQ(f)::QAR1(A)
  • Actual
    • B(G);
    • Threat
      • R1(D)
    • Vars
      • R(m);CHECK,N_GUARD::S(C),XR(m)
      • P(j);OGATE,XR(D)::B(I),XP(j)
      • P(c);OGATEB::QAB(A)
      • P(d);OGATEB::QAB(A)
      • Q(f);N_GUARD::QAR1(A),XQ(f)
      • S(i);S_CUTQ(f)::QAR1(A)
      • S(i);N_GUARD,S_CUTB(l)::B(I)
      • S(n);S_CUTR(m)::S(C)
      • P(j);::R1(D),XP(j)
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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).