MESON Chess Problem Database

Problem Display
PID: 275912 (3n4/2RK2p1/1p1P2pp/3k4/2p1N1Q1/nNBq4/8/3R3b w - - 0 1)

Bylevski, Aleksandr

Phenix, 2002

3n4/2RK2p1/1p1P2pp/3k4/2p1N1Q1/nNBq4/8/3R3b

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qd2
      • 2.Rxd2#
    • 1...Sc6
      • 2.Qe6#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sb7
      • 2.Qe6#
    • 1...Sf7
      • 2.Qe6#
    • 1...cxb3
      • 2.Rxd3#
    • 1...b5
      • 2.Rc5#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Sg3?
      • 1...Qxd1
        • 2.Qxd1#
      • 1...cxb3
        • 2.Rxd3#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qd2
        • 2.Rxd2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sb1
        • 2.Qxc4#
      • 1...Sc2
        • 2.Qxc4#
      • 1...Sb5
        • 2.Qxc4#
      • 1...Sc6
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...b5
        • 2.Rc5#
      • 1...g5
        • 2.Qf5#
      • 1...h5
        • 2.Qg5#
      • 1...Bg2!
    • 1.Qxg6?
      • threat
        • 2.Qf5#
      • 1...Sc6
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...Bxe4!
  • Keys
    • 1.Sf2!
      • 1...Qxd1
        • 2.Qxd1#
      • 1...cxb3
        • 2.Rxd3#
      • 1...Qd4
        • 2.Qxd4#
      • 1...Qd2
        • 2.Rxd2#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qxe4#
      • 1...Sb1
        • 2.Qxc4#
      • 1...Sc2
        • 2.Qxc4#
      • 1...Sb5
        • 2.Qxc4#
      • 1...Sc6
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...b5
        • 2.Rc5#
      • 1...g5
        • 2.Qf5#
      • 1...h5
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • Q(c);OGATEB::R(A),XQ(c)
    • S(j);N_GUARD::QAB1(E)
    • S(j);N_GUARD::QAB1(E),XS(j)
    • P(d);N_GUARD,XS(B)::R(A),XQ(c)
    • P(f);N_GUARD::R1(G)
    • P(g);N_GUARD::QAR2(E)
  • Tries
    • Try
      • S(D);
      • Vars
        • Q(c);N_SPINQ(c),OGATE,XR(A)::QAR(E),XQ(c)
        • P(d);N_GUARD,XS(B)::R(A),XQ(c)
        • Q(c);N_GUARD::QAR1(E),XQ(c)
        • Q(c);OGATEB::R(A),XQ(c)
        • B(a);N_GUARD::QAB(E),XB(a)
        • B(a);N_GUARD::QAB1(E),XB(a)
        • S(b);N_GUARD::QAB1(E),XP(d)
        • S(j);N_GUARD::QAB1(E)
        • S(j);N_GUARD::QAB1(E),XS(j)
        • P(f);N_GUARD::R1(G)
        • P(g);N_GUARD::QAR2(E)
        • P(h);N_GUARD::QAR(E)
      • Refutation
        • B(a);
    • Try
      • Q(E);XP(g)
      • Threat
        • QAR2(E)
      • Vars
        • S(j);N_GUARD::QAB1(E)
      • Refutation
        • B(a);XS(D)
  • Actual
    • S(D);
    • Vars
      • Q(c);N_SPINQ(c),OGATE,XR(A)::QAR(E),XQ(c)
      • P(d);N_GUARD,XS(B)::R(A),XQ(c)
      • Q(c);N_GUARD::QAR1(E),XQ(c)
      • Q(c);OGATEB::R(A),XQ(c)
      • B(a);N_GUARD::QAB(E),XB(a)
      • B(a);N_GUARD::QAB1(E),XB(a)
      • S(b);N_GUARD::QAB1(E),XP(d)
      • S(j);N_GUARD::QAB1(E)
      • S(j);N_GUARD::QAB1(E),XS(j)
      • P(f);N_GUARD::R1(G)
      • P(g);N_GUARD::QAR2(E)
      • P(h);N_GUARD::QAR(E)
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).