MESON Chess Problem Database
Problem Display
PID: 50301 (5nB1/4Prq1/4Nb2/1R4p1/1P1Pk3/1p1N4/2PP4/B1Q1KR1b w - - 0 1)
Degener, Udo
Degenkolbe, Mirko
1st HM., Ahues-75 JT, 1998
#2
13 + 8
SOLUTION
- SOUND
- Sets
- 1...Rxe7
- 2.Sec5#
- 1...Bf3
- 2.Sf2#
- 1...g4
- 2.Rf4#
- 1...Rxe7
- Tries
- 1.Qd1?
- threat
- 2.Sf2#
- 2.Qe2#
- 2.Qg4#
- 1...Bxe7
- 2.Qe2#
- 1...Sxe6
- 2.Qe2#
- 1...bxc2
- 2.Sf2#
- 2.Qe2#
- 1...Bf3
- 2.Sf2#
- 2.Qxf3#
- 1...Be5
- 2.Qe2#
- 1...Sg6
- 2.Sf2#
- 2.Qe2#
- 1...g4
- 2.Sf2#
- 2.Rf4#
- 2.Qe2#
- 1...Bxd4!
- threat
- 1.e8Q?
- threat
- 2.Sxg5#
- 2.Qc6#
- 1...Sxe6
- 2.Qc6#
- 1...Rc7
- 2.Sec5#
- 2.Sxg5#
- 1...Rd7
- 2.Sec5#
- 2.Sxg5#
- 1...Re7
- 2.Sec5#
- 2.Qc6#
- 1...Be5
- 2.Qc6#
- 1...Be7
- 2.Qc6#
- 2.Qa8#
- 1...Sd7
- 2.Sxg5#
- 2.Qa8#
- 1...b2
- 2.Qc6#
- 1...g4
- 2.Sg5#
- 2.Rf4#
- 2.Qc6#
- 1...bxc2!
- threat
- 1.Qd1?
- Keys
- 1.Qa3!
- threat
- 2.Qa8#
- 1...Rxe7
- 2.Sec5#
- 1...bxc2
- 2.Sf2#
- threat
- 1.Qa3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(f);XP(L)::S(K)
- B(a);SBLOCK::S(G)
- P(d);N_GUARD::R1(D)
- Tries
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(e);XP(L)::QAR2(B)
- S(h);XS(K)::QAR2(B)
- B(e);::QAR2(B)
- Refutation
- B(e);XP(I)
- Try
- P(L);
- Threat
- DUALS(2)
- Vars
- S(h);P_SPINS(h),XS(K)::QAB(L)
- B(e);::QAB(L)
- P(b);::QAB(L)
- Refutation
- P(b);XP(E)
- Try
- Actual
- Q(B);
- Threat
- QAB(B)
- Vars
- R(f);XP(L)::S(K)
- P(b);XP(E)::S(G)
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).