MESON Chess Problem Database
Problem Display
PID: 176281 (3Q3B/5p2/nRN5/1np5/2k1p3/2b1R3/2B5/3K4 w - - 0 1)
Jensch, Gerhard Wolfgang
1st Prize, Schach-Echo, 1954
#2
7 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Bb3#
- 1...Be1
- 2.Bb3#
- 1...Bb2
- 2.Bb3#
- 1...Bd2
- 2.Bb3#
- 1...Bb4
- 2.Se5#
- 2.Bb3#
- 1...Bd4
- 2.Bb3#
- 1...Ba5
- 2.Bb3#
- 1...Be5
- 2.Bb3#
- 1...Bf6
- 2.Bb3#
- 1...Bg7
- 2.Bb3#
- 1...Bxh8
- 2.Bb3#
- 1...Sa3
- 2.Bb3#
- 2.Rxc3#
- 1...Sd4
- 2.Se5#
- 1...Sd6
- 2.Bb3#
- 1...Sa7
- 2.Bb3#
- 2.Rxc3#
- 1...Sbc7
- 2.Bb3#
- 2.Rxc3#
- 1...Sb4
- 2.Sa5#
- 1...f5
- 2.Qg8#
- 1...f6
- 2.Qg8#
- 1...Ba1
- Tries
- 1.Bb1?
- threat
- 2.Ba2#
- 1...Sd4
- 2.Se5#
- 1...Sb4
- 2.Sa5#
- 1...Kb3!
- threat
- 1.Bxc3?
- threat
- 2.Sa5#
- 2.Se5#
- 1...Sd6
- 2.Bb3#
- 1...f6
- 2.Sa5#
- 2.Qg8#
- 1...Sxc3+!
- threat
- 1.Rxe4+?
- 1...Sd4
- 2.Se5#
- 1...Bd4!
- 1...Sd4
- 1.Qd7?
- threat
- 2.Qxf7#
- 1...Sd6
- 2.Bb3#
- 1...Sd4
- 2.Se5#
- 1...Sbc7
- 2.Bb3#
- 2.Rxc3#
- 1...Sb4
- 2.Sa5#
- 1...f5
- 2.Qe6#
- 2.Qf7#
- 1...f6
- 2.Qe6#
- 2.Qf7#
- 1...Sac7!
- threat
- 1.Bb1?
- Keys
- 1.Qa8!
- 1...Kd5
- 2.Sa5#
- 1...Bxh8
- 2.Bb3#
- 1...Sac7
- 2.Qa2#
- 1...Ba1
- 2.Bb3#
- 1...Be1
- 2.Bb3#
- 1...Bb2
- 2.Bb3#
- 1...Bd2
- 2.Bb3#
- 1...Bb4
- 2.Bb3#
- 1...Bd4
- 2.Bb3#
- 1...Ba5
- 2.Bb3#
- 1...Be5
- 2.Bb3#
- 1...Bf6
- 2.Bb3#
- 1...Bg7
- 2.Bb3#
- 1...Sa3
- 2.Bb3#
- 1...Sd4
- 2.Se5#
- 1...Sd6
- 2.Bb3#
- 1...Sa7
- 2.Bb3#
- 1...Sbc7
- 2.Bb3#
- 1...Sb4
- 2.Sa5#
- 1...Sb8
- 2.Qa2#
- 1...f5
- 2.Qg8#
- 1...f6
- 2.Qg8#
- 1...Kd5
- 1.Qa8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- B(a);::B(B)
- B(a);XB(G)::B(B)
- S(d);S_CUTB(a)::S(E)
- S(d);::B(B)
- S(f);SBLOCK,S_CUTB(a)::S(E)
- P(g);OGATEB::QAB(F)
- Tries
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(d);S_CUTB(a)::S(E)
- S(f);SBLOCK,S_CUTB(a)::S(E)
- Refutation
- K(b);P_SPINB(a),P_SPINS(d),S_FLIGHT
- Try
- B(G);XB(a)
- Threat
- DUALS(2)
- Vars
- S(d);::B(B)
- Refutation
- S(d);CHECK,XB(G)
- Try
- R(C);CHECK,XP(c)
- Vars
- S(d);P_SPINS(d)::S(E)
- Refutation
- B(a);P_SPINB(a)
- Try
- Q(F);
- Threat
- QAB(F),XP(g)
- Vars
- S(d);::B(B)
- S(d);S_CUTB(a)::S(E)
- S(f);SBLOCK,S_CUTB(a)::S(E)
- Refutation
- S(f);
- Try
- Actual
- Q(F);
- Vars
- K(b);S_FLIGHT::QAB(F)+S(E)
- B(a);XB(G)::B(B)
- S(f);OGATE::QAB(F)
- B(a);::B(B)
- S(d);::B(B)
- S(d);SBLOCK,S_CUTB(a)::S(E)
- S(f);SBLOCK,S_CUTB(a)::S(E)
- P(g);OGATEB::QAB(F)
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).