MESON Chess Problem Database
Problem Display
PID: 24559 (6Qn/1b1BRrb1/3p4/RPpk4/8/3PP3/1p4K1/1N6 w - - 0 1)
Mackenzie, Arthur Ford
2nd HM., Otago Witness, 1900
#2
9 + 8
| 5424 | Versunkene Schatze | 1998 |
| 133 | The Problemist Supplement | 2011 |
| 133 | The Problemist Supplement | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Ba8
- 2.Qxa8#
- 1...Bc8
- 2.Bc6#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.e4#
- 1...Be5
- 2.Be6#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...Sg6
- 2.Qxf7#
- 1...c4
- 2.b6#
- 1...Ba6
- Tries
- 1.Kg1?
- 1...c4
- 2.b6#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Ba8
- 2.Qxa8#
- 1...Bc8
- 2.Bc6#
- 1...Bc3
- 2.Sxc3#
- 1...Be5
- 2.Be6#
- 1...Bf6
- 2.Qg2#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...Sg6
- 2.Qxf7#
- 1...Bd4!
- 1...c4
- 1.Kh2?
- 1...c4
- 2.b6#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Ba8
- 2.Qxa8#
- 1...Bc8
- 2.Bc6#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.e4#
- 1...Bf6
- 2.Qg2#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...Sg6
- 2.Qxf7#
- 1...Be5+!
- 1...c4
- 1.Kh3?
- 1...c4
- 2.b6#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Ba8
- 2.Qxa8#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.e4#
- 1...Be5
- 2.Be6#
- 1...Bf6
- 2.Qg2#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...Sg6
- 2.Qxf7#
- 1...Bc8!
- 1...c4
- 1.Re4?
- threat
- 2.Be6#
- 1...c4
- 2.b6#
- 1...Bc8
- 2.Bc6#
- 1...Be5!
- threat
- 1.Kg1?
- Keys
- 1.Kh1!
- 1...c4
- 2.b6#
- 1...Ba6
- 2.Bc6#
- 1...Bc6
- 2.Bxc6#
- 1...Ba8
- 2.Qxa8#
- 1...Bc8
- 2.Bc6#
- 1...Bc3
- 2.Sxc3#
- 1...Bd4
- 2.e4#
- 1...Be5
- 2.Be6#
- 1...Bf6
- 2.Qg2#
- 1...Bh6
- 2.Sc3#
- 1...Bf8
- 2.Sc3#
- 1...Sg6
- 2.Qxf7#
- 1...c4
- 1.Kh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD::B(G)
- B(e);N_GUARD::B(G),XB(e)
- B(e);OGATEB::QAB(I),XB(e)
- B(g);N_GUARD::S(A),XB(g)
- B(g);SBLOCK::P(D)
- B(g);SBLOCK::B(G)
- B(g);N_GUARD::S(A)
- S(h);N_GUARD::QAB(I),XR(f)
- P(b);::R(E)+P(F)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- P(b);::R(E)+P(F)
- B(e);N_GUARD::B(G)
- B(e);N_GUARD::B(G),XB(e)
- B(e);OGATEB::QAB(I),XB(e)
- B(g);N_GUARD::S(A),XB(g)
- B(g);SBLOCK::B(G)
- B(g);OGATE::QAB(I)
- B(g);N_GUARD::S(A)
- S(h);N_GUARD::QAB(I),XR(f)
- Refutation
- B(g);P_PINP(D)
- Try
- K(B);P-FLIGHT
- Vars
- P(b);::R(E)+P(F)
- B(e);N_GUARD::B(G)
- B(e);N_GUARD::B(G),XB(e)
- B(e);OGATEB::QAB(I),XB(e)
- B(g);N_GUARD::S(A),XB(g)
- B(g);SBLOCK::P(D)
- B(g);OGATE::QAB(I)
- B(g);N_GUARD::S(A)
- S(h);N_GUARD::QAB(I),XR(f)
- Refutation
- B(g);CHECK
- Try
- K(B);S_FLIGHT
- Vars
- P(b);::R(E)+P(F)
- B(e);N_GUARD::B(G)
- B(e);N_GUARD::B(G),XB(e)
- B(e);OGATEB::QAB(I),XB(e)
- B(g);N_GUARD::S(A),XB(g)
- B(g);SBLOCK::P(D)
- B(g);SBLOCK::B(G)
- B(g);OGATE::QAB(I)
- B(g);N_GUARD::S(A)
- S(h);N_GUARD::QAB(I),XR(f)
- Refutation
- B(e);P_PINB(G)
- Try
- R(H);
- Threat
- B(G)
- Vars
- P(b);::R(E)+P(F)
- B(e);N_GUARD::B(G)
- Refutation
- B(g);
- Try
- Actual
- K(B);S_FLIGHT
- Vars
- P(b);::R(E)+P(F)
- B(e);N_GUARD::B(G)
- B(e);N_GUARD::B(G),XB(e)
- B(e);OGATEB::QAB(I),XB(e)
- B(g);N_GUARD::S(A),XB(g)
- B(g);SBLOCK::P(D)
- B(g);SBLOCK::B(G)
- B(g);OGATE::QAB(I)
- B(g);N_GUARD::S(A)
- S(h);N_GUARD::QAB(I),XR(f)
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).