MESON Chess Problem Database
Problem Display
PID: 90962 (4r2B/8/n2b4/2p1n2Q/Kpk1r3/1p3B2/8/1N1R4 w - - 0 1)
Latzel, Gerhard Paul
Die Schwalbe, 1948
#2
6 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Bd5#
- 1...Re2
- 2.Bd5#
- 1...Re3
- 2.Bd5#
- 1...Rf4
- 2.Bd5#
- 1...Rg4
- 2.Bd5#
- 1...Rh4
- 2.Bd5#
- 1...Sd3
- 2.Sd2#
- 1...Sxf3
- 2.Qd5#
- 1...Sg4
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sf7
- 2.Qd5#
- 1...Re1
- Tries
- 1.Be2+?
- 1...Sd3
- 2.Sd2#
- 2.Bxd3#
- 2.Rc1#
- 1...Rxe2!
- 1...Sd3
- 1.Qf7+?
- 1...Re6
- 2.Qxe6#
- 1...Sxf7!
- 1...Re6
- 1.Qg5?
- threat
- 2.Qc1#
- 1...Re2
- 2.Bd5#
- 1...Re3
- 2.Bd5#
- 1...Rf4
- 2.Bd5#
- 2.Qxf4#
- 1...Sd3
- 2.Sd2#
- 1...b2!
- threat
- 1.Be2+?
- Keys
- 1.Qf5!
- threat
- 2.Qxe4#
- 1...Sxf3
- 2.Qd5#
- 1...Rd4
- 2.Rc1#
- 1...Re1
- 2.Bd5#
- 1...Re2
- 2.Bd5#
- 1...Re3
- 2.Bd5#
- 1...Rf4
- 2.Bd5#
- 2.Qxf4#
- 1...Rg4
- 2.Bd5#
- 1...Rh4
- 2.Bd5#
- 1...Sd3
- 2.Sd2#
- 1...Sg4
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sf7
- 2.Qd5#
- threat
- 1.Qf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);OGATE::B(C)
- S(f);SBLOCK::S(A)
- S(f);OGATE,XB(C)::QAB1(E)
- S(f);OGATE::QAB1(E)
- Tries
- Try
- B(C);CHECK
- Refutation
- R(d);XB(C)
- Try
- Q(E);CHECK
- Vars
- R(i);N_GUARD,P_SPINR(i)::QAB(E),XR(i)
- Refutation
- S(f);XQ(E)
- Try
- Q(E);
- Threat
- QAR(E)
- Vars
- R(d);OGATE::B(C)
- S(f);SBLOCK::S(A)
- Refutation
- P(a);
- Try
- Actual
- Q(E);
- Threat
- QAR2(E),XR(d)
- Vars
- S(f);OGATE,XB(C)::QAB1(E)
- R(d);SBLOCK::R(B)
- R(d);OGATE::B(C)
- S(f);SBLOCK::S(A)
- S(f);OGATE::QAB1(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).