MESON Chess Problem Database
Problem Display
PID: 174124 (3B2B1/8/1Q1N4/3pkp2/3Rn3/7P/4P3/K7 w - - 0 1)
Buchner, Richard
Osterreichische Arbeiter Shachzeitung, 1929
#2
8 + 4
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Sf7#
- 1...Sf2
- 2.Sf7#
- 1...Sc3
- 2.Sf7#
- 1...Sg3
- 2.Sf7#
- 1...Sf6
- 2.Sf7#
- 1...f4
- 2.Rxd5#
- 1...Sd2
- Tries
- 1.Sc4+?
- 1...Kf4
- 2.Qc7#
- 2.Qd6#
- 2.Qb8#
- 1...dxc4!
- 1...Kf4
- 1.Sxe4?
- threat
- 2.Bc7#
- 1...fxe4
- 2.Qf6#
- 1...f4
- 2.Qf6#
- 1...Kf4!
- threat
- 1.Sb5?
- 1...Sd2
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 2.Qb8#
- 1...Sf2
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 2.Qb8#
- 1...Sc3
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 2.Qb8#
- 1...Sg3
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qe6#
- 2.Qf6#
- 2.Qb8#
- 1...Sc5
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qf6#
- 2.Qb8#
- 1...Sg5
- 2.Bf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qf6#
- 2.Qb8#
- 1...Sd6
- 2.Qxd6#
- 1...Sf6
- 2.Bxf6#
- 2.Bc7#
- 2.Qc7#
- 2.Qd6#
- 2.Qe6#
- 2.Qxf6#
- 2.Qb8#
- 1...f4
- 2.Rxd5#
- 2.Qe6#
- 1...Kf4!
- 1...Sd2
- 1.Se8?
- 1...Sd6
- 2.Bf6#
- 1...Sd2
- 2.Bf6#
- 2.Bc7#
- 2.Qf6#
- 1...Sf2
- 2.Bf6#
- 2.Bc7#
- 2.Qf6#
- 1...Sc3
- 2.Bf6#
- 2.Bc7#
- 2.Qf6#
- 1...Sg3
- 2.Bf6#
- 2.Bc7#
- 2.Qf6#
- 1...Sc5
- 2.Bf6#
- 2.Qf6#
- 1...Sg5
- 2.Bf6#
- 2.Bc7#
- 2.Qf6#
- 1...Sf6
- 2.Bxf6#
- 2.Bc7#
- 2.Qxf6#
- 1...f4
- 2.Rxd5#
- 1...Kf4!
- 1...Sd6
- 1.e3?
- threat
- 2.Sf7#
- 2.Rxd5#
- 1...Sc3
- 2.Sf7#
- 1...Sg5
- 2.Rxd5#
- 1...Sf6
- 2.Sf7#
- 1...f4
- 2.Rxd5#
- 1...Sxd6!
- threat
- 1.Sc4+?
- Keys
- 1.Qc7!
- 1...Kxd4
- 2.Sxf5#
- 1...Kf4
- 2.Sc4#
- 1...Sxd6
- 2.Qg7#
- 1...Sd2
- 2.Sb5#
- 1...Sf2
- 2.Sb5#
- 1...Sc3
- 2.Sb5#
- 1...Sg3
- 2.Sb5#
- 1...Sc5
- 2.Sb5#
- 1...Sg5
- 2.Sb5#
- 1...Sf6
- 2.Sb5#
- 1...f4
- 2.Rxd5#
- 1...Kxd4
- 1.Qc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(a);::S(F)
- P(d);SBLOCK::R1(D),XP(b)
- Tries
- Try
- S(F);CHECK
- Refutation
- P(b);XS(F)
- Try
- S(F);XS(a)
- Threat
- B(G)
- Vars
- P(d);XS(F)::QAB1(E)
- P(d);::QAB1(E)
- Refutation
- K(c);S_FLIGHT
- Try
- S(F);
- Vars
- S(a);N_GUARD::QAB1(E),XS(a)
- Refutation
- K(c);P_SPINS(a),S_FLIGHT
- Try
- S(F);
- Vars
- S(a);N_GUARD::B(G)
- P(d);SBLOCK::R1(D),XP(b)
- Refutation
- K(c);P_SPINS(a),S_FLIGHT
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- S(a);::S(F)
- S(a);::R1(D),XP(b)
- P(d);::R1(D),XP(b)
- Refutation
- S(a);XS(F)
- Try
- Actual
- Q(E);
- Vars
- K(c);S_FLIGHT,XR(D)::S(F),XP(d)
- K(c);P_SPINS(a),S_FLIGHT::QAB(E)+S(F)
- S(a);N_GUARD,P_SPINS(a),SBLOCK,XS(F)::QAB(E)
- S(a);N_GUARD::QAB(E)+S(F)
- P(d);SBLOCK::R1(D),XP(b)
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).