MESON Chess Problem Database

Problem Display
PID: 120623 (4B1q1/1b2N1b1/1B1rp3/1r6/Rp2kPp1/nQ4PP/K1n1N1P1/3R4 w - - 0 1)

Kiss, Janos

Springaren, 1953

4B1q1/1b2N1b1/1B1rp3/1r6/Rp2kPp1/nQ4PP/K1n1N1P1/3R4

#2

12 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sc3#
    • 1...Rbxb6
      • 2.Bg6#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rdxb6
      • 2.Qd3#
    • 1...Rc6
      • 2.Qd3#
    • 1...Bd5
      • 2.Bg6#
    • 1...Bc3
      • 2.Sxc3#
    • 1...Bd4
      • 2.Qd3#
    • 1...Bh6
      • 2.Sc3#
    • 1...Bf8
      • 2.Sc3#
    • 1...Sa1
      • 2.Qe3#
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sd4
      • 2.Qd3#
    • 1...gxh3
      • 2.Qf3#
    • 1...e5
      • 2.Sc3#
  • Tries
    • 1.Bc6+?
      • 1...Rbd5
        • 2.Qd3#
      • 1...Rdd5
        • 2.Qd3#
      • 1...Rxc6
        • 2.Qd3#
      • 1...Bxc6!
    • 1.Qxc2+?
      • 1...Rd3
        • 2.Qxd3#
      • 1...Sxc2!
  • Keys
    • 1.hxg4!
      • threat
        • 2.Qf3#
      • 1...e5
        • 2.Sc3#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Bd5
        • 2.Bg6#
      • 1...Bc3
        • 2.Sxc3#
      • 1...Se1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sd4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • R(f);S_CUTB(j)::S(C)
    • R(f);N_GUARD,XB(J)::B(L)
    • R(g);N_GUARD::QAB1(E),XR(g)
    • R(g);N_GUARD,XB(J)::QAB1(E)
    • R(g);N_GUARD::QAB1(E)
    • B(i);P_PINQ(E),S_CUTR(f)::B(L)
    • B(j);N_GUARD::S(C),XB(j)
    • B(j);N_SPINP(c),S_CUTR(g)::QAB1(E)
    • B(j);N_GUARD::S(C)
    • S(a);N_GUARD::QAR1(E)
    • S(a);N_GUARD::QAR1(E),XS(a)
    • S(a);N_SPINP(c),S_CUTR(g)::QAB1(E)
    • P(e);N_GUARD,XP(G)::QAB1(E)
    • P(h);P_PINQ(E),S_CUTB(j)::S(C)
  • Tries
    • Try
      • B(L);CHECK
      • Vars
        • R(f);P_SPINR(f)::QAB1(E)
        • R(g);P_SPINR(g)::QAB1(E)
        • R(g);XB(L)::QAB1(E)
      • Refutation
        • B(i);XB(L)
    • Try
      • Q(E);CHECK,XS(a)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(E),XR(g)
      • Refutation
        • S(b);XQ(E)
  • Actual
    • P(G);XP(e)
    • Threat
      • QAB1(E)
    • Vars
      • P(h);P_PINQ(E),S_CUTB(j)::S(C)
      • R(g);N_GUARD::QAB1(E),XR(g)
      • B(i);P_PINQ(E),S_CUTR(f)::B(L)
      • B(j);N_GUARD::S(C),XB(j)
      • S(a);N_GUARD::QAR1(E)
      • S(a);N_GUARD::QAR1(E),XS(a)
      • S(a);N_SPINP(c),S_CUTR(g)::QAB1(E)
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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).