MESON Chess Problem Database
Problem Display
PID: 39107 (8/3pKB1b/3N2p1/2n1kPp1/3ppp2/8/8/7Q w - - 0 1)
Armeni, Alberto
Problem Observer, 2001
#2
5 + 9
SOLUTION
- SOUND
- Sets
- 1...Bg8
- 2.Qh8#
- 1...Sb3
- 2.Qxe4#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...d3
- 2.Qa1#
- 1...e3
- 2.Qd5#
- 1...f3
- 2.Qh2#
- 1...gxf5
- 2.Sc4#
- 1...Bg8
- Tries
- 1.Ba2?
- 1...gxf5
- 2.Sf7#
- 1...Sb3
- 2.Qxe4#
- 1...d3
- 2.Qa1#
- 1...f3
- 2.Qh2#
- 1...Bg8
- 2.Qh8#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...e3
- 2.Qd5#
- 1...g4!
- 1...gxf5
- 1.Bb3?
- 1...Sxb3
- 2.Qxe4#
- 1...gxf5
- 2.Sf7#
- 1...d3
- 2.Qa1#
- 1...f3
- 2.Qh2#
- 1...Bg8
- 2.Qh8#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...e3
- 2.Qd5#
- 1...g4!
- 1...Sxb3
- 1.Bc4?
- 1...gxf5
- 2.Sf7#
- 1...d3
- 2.Qa1#
- 1...f3
- 2.Qh2#
- 1...Bg8
- 2.Qh8#
- 1...Sb3
- 2.Qxe4#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Se6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...e3
- 2.Qd5#
- 1...g4!
- 1...gxf5
- 1.Be6?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...Sxe6
- 2.Qxe4#
- 1...d3
- 2.Qa1#
- 1...f3
- 2.Qh2#
- 1...Bg8
- 2.Sc4#
- 2.Qh8#
- 1...dxe6!
- threat
- 1.Qh6?
- threat
- 2.Qg7#
- 1...f3
- 2.Qh2#
- 1...Se6!
- threat
- 1.Qxh7?
- threat
- 2.Qg7#
- 2.Qh8#
- 1...f3
- 2.Qh2#
- 1...Se6!
- threat
- 1.Ba2?
- Keys
- 1.fxg6!
- 1...Bxg6
- 2.Qh8#
- 1...Se6
- 2.Qxe4#
- 1...d3
- 2.Qa1#
- 1...f3
- 2.Qh2#
- 1...g4
- 2.Qh5#
- 1...Bg8
- 2.Qh8#
- 1...Sb3
- 2.Qxe4#
- 1...Sd3
- 2.Qxe4#
- 1...Sa4
- 2.Qxe4#
- 1...Sa6
- 2.Qxe4#
- 1...Sb7
- 2.Qxe4#
- 1...e3
- 2.Qd5#
- 1...Bxg6
- 1.fxg6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(i);OGATE::QAB(A)
- S(d);N_GUARD::QAR1(A),XP(b)
- P(a);OGATEB::QAB(A)
- P(b);OGATE::QAR1(A)
- P(c);OGATEB::QAB(A)
- P(g);SBLOCK,XP(B)::S(C)
- Tries
- Try
- B(E);
- Vars
- P(g);SBLOCK,XP(B)::S(C)
- S(d);N_GUARD::QAR1(A),XP(b)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- B(i);OGATE::QAB(A)
- P(b);OGATE::QAR1(A)
- Refutation
- P(f);
- Try
- B(E);
- Vars
- S(d);N_GUARD,XB(E)::QAR1(A),XP(b)
- P(g);SBLOCK,XP(B)::S(C)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- B(i);OGATE::QAB(A)
- S(d);N_GUARD::QAR1(A),XP(b)
- P(b);OGATE::QAR1(A)
- Refutation
- P(f);
- Try
- B(E);
- Vars
- P(g);SBLOCK,XP(B)::S(C)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- B(i);OGATE::QAB(A)
- S(d);N_GUARD::QAR1(A),XP(b)
- P(b);OGATE::QAR1(A)
- Refutation
- P(f);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XB(E)::QAR1(A),XP(b)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- Refutation
- P(h);XB(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- S(d);
- Try
- Q(A);XB(i)
- Threat
- DUALS(2)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- S(d);
- Try
- Actual
- P(B);XP(g)
- Vars
- B(i);OGATE,XP(B)::QAB(A)
- S(d);N_GUARD::QAR1(A),XP(b)
- P(a);OGATEB::QAB(A)
- P(c);OGATEB::QAB(A)
- P(f);OGATEB::QAR(A)
- B(i);OGATE::QAB(A)
- P(b);OGATE::QAR1(A)
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).