MESON Chess Problem Database
Problem Display
PID: 27314 (4Q3/1K6/8/4n3/8/B7/3N3R/3k4 w - - 0 1)
Lebeck, Donald
Mate in Two!! (Lebeck), 1992
#2
5 + 2
SOLUTION
- SOUND
- Tries
- 1.Sb1?
- 1...Sd3
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Sf3
- 2.Sc3#
- 2.Qe2#
- 1...Sc4
- 2.Sc3#
- 2.Qe2#
- 1...Sg4
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Sc6
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Sg6
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Sd7
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Sf7
- 2.Sc3#
- 2.Rd2#
- 2.Qe2#
- 1...Ke1!
- 1...Sd3
- 1.Sf1?
- 1...Sd3
- 2.Rd2#
- 2.Qe2#
- 1...Sf3
- 2.Qe2#
- 1...Sc4
- 2.Qe2#
- 1...Sg4
- 2.Rd2#
- 2.Qe2#
- 1...Sc6
- 2.Rd2#
- 2.Qe2#
- 1...Sg6
- 2.Rd2#
- 2.Qe2#
- 1...Sd7
- 2.Rd2#
- 2.Qe2#
- 1...Sf7
- 2.Rd2#
- 2.Qe2#
- 1...Ke1!
- 1...Sd3
- 1.Sb3?
- 1...Sd3
- 2.Rd2#
- 2.Qe2#
- 1...Sf3
- 2.Qe2#
- 1...Sc4
- 2.Qe2#
- 1...Sg4
- 2.Rd2#
- 2.Qe2#
- 1...Sc6
- 2.Rd2#
- 2.Qe2#
- 1...Sg6
- 2.Rd2#
- 2.Qe2#
- 1...Sd7
- 2.Rd2#
- 2.Qe2#
- 1...Sf7
- 2.Rd2#
- 2.Qe2#
- 1...Ke1!
- 1...Sd3
- 1.Sc4?
- 1...Sxc4
- 2.Qe2#
- 1...Sd3
- 2.Rd2#
- 2.Qe2#
- 1...Sf3
- 2.Qe2#
- 1...Sg4
- 2.Rd2#
- 2.Qe2#
- 1...Sc6
- 2.Rd2#
- 2.Qe2#
- 1...Sg6
- 2.Rd2#
- 2.Qe2#
- 1...Sd7
- 2.Rd2#
- 2.Qe2#
- 1...Sf7
- 2.Rd2#
- 2.Qe2#
- 1...Ke1!
- 1...Sxc4
- 1.Se4?
- 1...Sd3
- 2.Sc3#
- 1...Sf3
- 2.Sc3#
- 1...Sc4
- 2.Sc3#
- 1...Sg4
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...Sg6
- 2.Sc3#
- 1...Sd7
- 2.Sc3#
- 1...Sf7
- 2.Sc3#
- 1...Ke1!
- 1...Sd3
- 1.Qb5?
- threat
- 2.Qb1#
- 1...Ke1
- 2.Qf1#
- 2.Qe2#
- 2.Qb1#
- 1...Kc2
- 2.Qb3#
- 1...Sd3!
- threat
- 1.Sb1?
- Keys
- 1.Sf3!
- threat
- 2.Rd2#
- 2.Qa4#
- 1...Sxf3
- 2.Qe2#
- 1...Sc4
- 2.Qa4#
- 2.Qe1#
- 2.Qe2#
- 1...Sc6
- 2.Rd2#
- 2.Qe1#
- 2.Qe2#
- 1...Sd7
- 2.Rd2#
- 2.Qxd7#
- 2.Qe1#
- 2.Qe2#
- threat
- 1.Sf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(A);
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(A);
- Vars
- S(b);OGATE::QAB1(E)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(A);
- Vars
- S(b);OGATE::QAB1(E)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(A);
- Vars
- S(b);OGATE,XS(A)::QAB1(E)
- S(b);OGATE::QAB1(E)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b)
- Try
- S(A);
- Vars
- S(b);::S(A)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(E);
- Threat
- QAR2(E)
- Vars
- K(a);S_FLIGHT::QAB1(E)
- Refutation
- S(b);
- Try
- Actual
- S(A);
- Threat
- DUALS(2)
- Vars
- S(b);OGATE,XS(A)::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).