MESON Chess Problem Database
Problem Display
PID: 287419 (1Q4b1/2N5/r2n3n/r4p2/5k2/p6K/8/4R1RB w - - 0 1)
Mansfield, Comins
The Problemist, 1944
#2
6 + 8
| 6490 | yacpdb | 2026 |
SOLUTION
- SOUND
- Sets
- 1...Be6
- 2.Sxe6#
- 1...Bh7
- 2.Se6#
- 1...Sc4
- 2.Sd5#
- 2.Se6#
- 1...Se4
- 2.Sd5#
- 2.Se6#
- 1...Sb5
- 2.Sd5#
- 2.Se6#
- 1...Sb7
- 2.Sd5#
- 2.Se6#
- 1...Sdf7
- 2.Sd5#
- 2.Se6#
- 2.Qb4#
- 1...Sc8
- 2.Sd5#
- 2.Se6#
- 1...Se8
- 2.Sd5#
- 2.Se6#
- 1...Shf7
- 2.Se6#
- 1...Be6
- Tries
- 1.Re4+?
- 1...Sxe4
- 2.Sd5#
- 1...fxe4!
- 1...Sxe4
- 1.Qxg8?
- threat
- 2.Se6#
- 2.Rgf1#
- 2.Qg3#
- 2.Qg5#
- 1...Sxg8
- 2.Se6#
- 1...Re5
- 2.Rgf1#
- 2.Qg3#
- 2.Qg5#
- 1...Sc4
- 2.Rgf1#
- 2.Qxc4#
- 2.Qg3#
- 2.Qg5#
- 1...Sb5
- 2.Sd5#
- 2.Rgf1#
- 2.Qg3#
- 2.Qg5#
- 1...Sb7
- 2.Rgf1#
- 2.Qc4#
- 2.Qg3#
- 2.Qg5#
- 1...Sdf7
- 2.Rgf1#
- 2.Qg3#
- 1...Sc8
- 2.Rgf1#
- 2.Qc4#
- 2.Qg3#
- 2.Qg5#
- 1...Se8
- 2.Rgf1#
- 2.Qc4#
- 2.Qg3#
- 2.Qg5#
- 1...Sg4
- 2.Se6#
- 1...Shf7
- 2.Se6#
- 2.Rgf1#
- 2.Qg3#
- 1...Se4!
- threat
- 1.Re4+?
- Keys
- 1.Qf8!
- threat
- 2.Qxh6#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Rxg4#
- 1...Sc4
- 2.Re4#
- 1...Sb5
- 2.Re4#
- 1...Sb7
- 2.Re4#
- 1...Sdf7
- 2.Qb4#
- 1...Sc8
- 2.Re4#
- 1...Se8
- 2.Re4#
- 1...Shf7
- 2.Se6#
- threat
- 1.Qf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- B(h);N_GUARD::S(E),XB(h)
- B(h);N_GUARD::S(E)
- S(g);S_CUTB(h)::S(E)
- Tries
- Try
- R(A);CHECK
- Vars
- S(f);XR(A)::QAB(F)+S(E),DCHECK
- Refutation
- P(d);XR(A)
- Try
- Q(F);XB(h)
- Threat
- DUALS(4)
- Vars
- S(g);XQ(F)::S(E)
- S(g);::S(E)
- Refutation
- S(f);
- Try
- Actual
- Q(F);P_PINP(d)
- Threat
- QAB(F),XS(g)
- Vars
- S(f);N_GUARD::R1(A),XS(f)
- S(g);N_GUARD::R1(B),XS(g)
- S(f);N_GUARD::R1(A)
- S(f);N_SPINP(d),OGATE::QAR(F)
- S(g);N_SPINP(d),S_CUTB(h)::S(E)
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).