MESON Chess Problem Database
Problem Display
PID: 133598 (1Q1n4/p3N3/B5p1/R2p4/P2k4/3P3n/p5q1/K2N4 w - - 0 1)
Bottger, Horst
Der Tagesspiegel (Berlin), 1999
#2
8 + 8
| 14503 | Problemschach-Jahrbuch (1999) | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Rxd5#
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...Qf3
- 2.Qb2#
- 1...Qe4
- 2.Qb2#
- 1...Qg1
- 2.Rxd5#
- 2.Qb2#
- 1...Qb2+
- 2.Qxb2#
- 1...Qc2
- 2.Rxd5#
- 1...Qd2
- 2.Rxd5#
- 1...Qe2
- 2.Rxd5#
- 1...Qf2
- 2.Rxd5#
- 1...Qh2
- 2.Rxd5#
- 1...Qg3
- 2.Rxd5#
- 2.Qb2#
- 1...Qg4
- 2.Rxd5#
- 2.Qb2#
- 1...Qg5
- 2.Qb2#
- 1...Sf2
- 2.Qb2#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sc6#
- 1...Sb7
- 2.Sc6#
- 2.Qh8#
- 1...Sf7
- 2.Sc6#
- 1...g5
- 2.Sf5#
- 1...Qf1
- Tries
- 1.Sxg6?
- threat
- 2.Qe5#
- 2.Qxa7#
- 2.Qb4#
- 1...Qb2+
- 2.Qxb2#
- 1...Qxg6
- 2.Qb2#
- 1...Qe4
- 2.Qxa7#
- 2.Qb2#
- 2.Qb4#
- 1...Qc2
- 2.Qe5#
- 1...Qd2
- 2.Qe5#
- 2.Qxa7#
- 1...Qe2
- 2.Qxa7#
- 2.Qb4#
- 1...Qh2
- 2.Qxa7#
- 2.Qb4#
- 1...Qg3
- 2.Qxa7#
- 2.Qb2#
- 2.Qb4#
- 1...Qg5
- 2.Qxa7#
- 2.Qb2#
- 2.Qb4#
- 1...Se6
- 2.Qe5#
- 2.Qb4#
- 1...Sb7
- 2.Qe5#
- 2.Qh8#
- 1...Sf7
- 2.Qxa7#
- 2.Qb4#
- 1...Sc6!
- threat
- 1.Qf4+?
- 1...Qe4
- 2.Rxd5#
- 1...Sxf4!
- 1...Qe4
- 1.Qc7?
- threat
- 2.Qc3#
- 1...Qc2
- 2.Rxd5#
- 1...Qd2
- 2.Rxd5#
- 1...Sc6
- 2.Sxc6#
- 1...Qb2+!
- threat
- 1.Qb3?
- threat
- 2.Qc3#
- 1...Qb2+
- 2.Qxb2#
- 1...Qc2
- 2.Rxd5#
- 2.Qxd5#
- 1...Qd2
- 2.Rxd5#
- 2.Qxd5#
- 1...Ke5!
- threat
- 1.Sxg6?
- Keys
- 1.Qh2!
- 1...Qb2+
- 2.Qxb2#
- 1...Qxh2
- 2.Rxd5#
- 1...Qg3
- 2.Rxd5#
- 2.Qb2#
- 1...Sf4
- 2.Qh8#
- 1...Qc2
- 2.Rxd5#
- 1...Qf1
- 2.Rxd5#
- 2.Qb2#
- 1...Qh1
- 2.Qb2#
- 1...Qf3
- 2.Qb2#
- 1...Qe4
- 2.Qb2#
- 1...Qg1
- 2.Rxd5#
- 2.Qb2#
- 1...Qd2
- 2.Rxd5#
- 1...Qe2
- 2.Rxd5#
- 1...Qf2
- 2.Rxd5#
- 1...Qg4
- 2.Rxd5#
- 2.Qb2#
- 1...Qg5
- 2.Qb2#
- 1...Sg1
- 2.Qh8#
- 1...Sf2
- 2.Qh8#
- 1...Sg5
- 2.Qh8#
- 1...Sc6
- 2.Sxc6#
- 1...Se6
- 2.Sc6#
- 1...Sb7
- 2.Sc6#
- 1...Sf7
- 2.Sc6#
- 1...g5
- 2.Sf5#
- 1...Qb2+
- 1.Qh2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(b);N_GUARD,P_PINS(B)::QAB(H)
- Q(b);N_GUARD::QAB(H)
- Q(b);CHECK,N_GUARD::QAB(H),XQ(b)
- Q(b);N_GUARD::R1(E),XP(e)
- S(c);S_CUTQ(b)::QAB(H)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::S(G)
- Tries
- Try
- S(G);XP(f)
- Threat
- DUALS(3)
- Vars
- Q(b);CHECK,N_GUARD::QAB(H),XQ(b)
- Q(b);N_GUARD,XS(G)::QAB(H)
- Q(b);::QAB1(H)
- Refutation
- S(h);
- Try
- Q(H);CHECK
- Vars
- Q(b);P_SPINQ(b)::R1(E),XP(e)
- Refutation
- S(c);XQ(H)
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- Q(b);N_GUARD::R1(E),XP(e)
- S(h);N_GUARD::S(G),XS(h)
- Refutation
- Q(b);CHECK
- Try
- Q(H);
- Threat
- QAB1(H)
- Vars
- Q(b);CHECK,N_GUARD::QAB(H),XQ(b)
- Refutation
- K(d);P_SPINP(e),S_FLIGHT
- Try
- Actual
- Q(H);
- Vars
- Q(b);CHECK,OGATE::QAB(H),XQ(b)
- Q(b);N_GUARD,XQ(H)::R1(E),XP(e)
- S(c);OGATE::QAB(H)
- Q(b);N_GUARD::R1(E),XP(e)
- Q(b);OGATE,P_PINS(B)::QAB(H)
- Q(b);OGATE::QAB(H)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- P(f);N_GUARD::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).