MESON Chess Problem Database
Problem Display
PID: 287312 (8/1p2K2p/8/1b2kp1Q/1NP3n1/5P2/4Nn2/6b1 w - - 0 1)
Shaw, EH
The Problemist, 1944
#2
6 + 8
| 6490 | yacpdb | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Sd3#
- 1...Sh1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 1...Se4
- 2.Sd3#
- 2.f4#
- 1...Sd1
- Tries
- 1.Qxg4?
- threat
- 2.Qd4#
- 2.Qf4#
- 2.Qg7#
- 1...Sxg4
- 2.Sd3#
- 1...Bh2
- 2.Qd4#
- 2.Qg7#
- 1...Sd1
- 2.Sd3#
- 2.Qf4#
- 2.Qg7#
- 1...Sh1
- 2.Sd3#
- 2.Qf4#
- 2.Qg7#
- 1...Sd3
- 2.Sxd3#
- 2.Qg7#
- 1...Sh3
- 2.Sd3#
- 2.Qg7#
- 1...Se4
- 2.Sd3#
- 2.Qf4#
- 2.f4#
- 1...f4
- 2.Qh5#
- 2.Qe6#
- 2.Qxf4#
- 2.Qg5#
- 1...fxg4!
- threat
- 1.Qg6?
- threat
- 2.Qd6#
- 2.Qe6#
- 1...Bxc4
- 2.Qd6#
- 1...Bd7
- 2.Qd6#
- 1...Se4
- 2.Sd3#
- 2.Qe6#
- 2.f4#
- 1...Sf6
- 2.Qxf6#
- 1...f4
- 2.Qh5#
- 2.Qg5#
- 2.Qe6#
- 1...hxg6!
- threat
- 1.Qf7?
- threat
- 2.Qd5#
- 2.Qe6#
- 1...Bc6
- 2.Qe6#
- 1...Bd7
- 2.Qd5#
- 1...Se3
- 2.Qe6#
- 2.Qf6#
- 2.Qg7#
- 1...Sf6
- 2.Qe6#
- 2.Qxf6#
- 1...Bxc4!
- threat
- 1.Qe8?
- threat
- 2.Qxb5#
- 2.Qb8#
- 1...Bxc4
- 2.Qb8#
- 1...f4
- 2.Qxb5#
- 2.Qh5#
- 1...Ba4
- 2.Qb8#
- 1...Ba6
- 2.Qb8#
- 1...Bc6
- 2.Qb8#
- 1...Bd7
- 2.Qb8#
- 1...Sd1
- 2.Sd3#
- 2.Qb8#
- 1...Sh1
- 2.Sd3#
- 2.Qb8#
- 1...Sd3
- 2.Sxd3#
- 2.Qb8#
- 1...Sh3
- 2.Sd3#
- 2.Qb8#
- 1...Se4
- 2.Sd3#
- 2.f4#
- 1...Se3
- 2.Qb8#
- 2.Qh8#
- 1...Sf6
- 2.Qb8#
- 1...Bxe8!
- threat
- 1.Qg5?
- threat
- 2.Qf4#
- 1...Sd3
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 1...Bh2!
- threat
- 1.Qh6?
- threat
- 2.Qf4#
- 2.Qd6#
- 2.Qe6#
- 1...Bxc4
- 2.Qf4#
- 2.Qd6#
- 1...f4
- 2.Qxf4#
- 2.Qg5#
- 2.Qh5#
- 2.Qe6#
- 1...Bh2
- 2.Qd6#
- 2.Qe6#
- 1...Bd7
- 2.Qf4#
- 2.Qd6#
- 1...Sd3
- 2.Sxd3#
- 2.Qd6#
- 2.Qe6#
- 1...Sh3
- 2.Sd3#
- 2.Qd6#
- 2.Qe6#
- 1...Se4
- 2.Sd3#
- 2.Qf4#
- 2.Qe6#
- 2.f4#
- 1...Sf6
- 2.Qf4#
- 2.Qxf6#
- 1...Sxh6!
- threat
- 1.Qxg4?
- Keys
- 1.Qh1!
- threat
- 2.f4#
- 1...Sxh1
- 2.Sd3#
- 1...f4
- 2.Qh5#
- 1...Bh2
- 2.Qa1#
- 1...Sd3
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- Tries
- Try
- Q(E);N_PINP(f),XS(c)
- Threat
- DUALS(3)
- Vars
- S(b);N_GUARD,XQ(E)::S(C)
- Refutation
- P(f);XQ(E)
- Try
- Q(E);N_PINP(f)
- Threat
- DUALS(2)
- Vars
- B(d);XP(D)::QAB1(E)
- B(d);::QAB1(E)
- S(c);N_GUARD::QAB1(E),XS(c)
- Refutation
- P(h);XQ(E)
- Try
- Q(E);N_PINP(f)
- Threat
- DUALS(2)
- Vars
- B(d);::QAR1(E)
- Refutation
- B(d);XP(D)
- Try
- Q(E);N_PINP(f)
- Threat
- DUALS(2)
- Vars
- B(d);XP(D)::QAB(E)
- B(d);::QAB(E)
- S(c);::QAB(E)
- Refutation
- B(d);XQ(E)
- Try
- Q(E);
- Threat
- QAB1(E)
- Vars
- S(b);N_GUARD::S(C),XS(b)
- S(b);N_GUARD::S(C)
- Refutation
- B(a);
- Try
- Q(E);N_PINP(f)
- Threat
- DUALS(3)
- Refutation
- S(c);XQ(E)
- Try
- Actual
- Q(E);N_PINP(f)
- Threat
- P(B)
- Vars
- S(b);N_GUARD,XQ(E)::S(C)
- P(f);OGATEB::QAR(E)
- B(a);OGATE::QAB(E)
- S(b);N_GUARD::S(C),XS(b)
- S(b);N_GUARD::S(C)
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).