MESON Chess Problem Database
Problem Display
PID: 47077 (3q4/3R1N1b/3P1Bkp/2Q4p/6NP/4n1RB/1P6/1K6 w - - 0 1)
Hoffmann, Hans
1st Place, Bavarian Championship, 1948
#2
11 + 6
| 461 | Schach-Express | 1949 |
| 4872 | Themes-64 | 1957 |
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Sh8#
- 1...Qb6
- 2.Sh8#
- 1...Qxf6
- 2.Sge5#
- 1...Qc7
- 2.Sh8#
- 1...Qe7
- 2.Sh8#
- 1...Qxd7
- 2.Sh8#
- 1...Qh8
- 2.Sxh8#
- 1...Bg8
- 2.Sh8#
- 1...Sd1
- 2.Qc2#
- 1...Sf1
- 2.Qc2#
- 1...Sc2
- 2.Qxc2#
- 1...Sg2
- 2.Qc2#
- 1...Sd5
- 2.Qc2#
- 1...Sf5
- 2.Sfe5#
- 1...Qa5
- Tries
- 1.Sgxh6+?
- 1...Sg4
- 2.Qf5#
- 2.Qg5#
- 1...Kxf6+!
- 1...Sg4
- 1.Sfxh6?
- threat
- 2.Rg7#
- 2.Qg5#
- 1...Qxd7
- 2.Qg5#
- 1...Sxg4
- 2.Qg5#
- 1...hxg4
- 2.Qg5#
- 1...Qa5
- 2.Rg7#
- 1...Qc7
- 2.Qg5#
- 1...Qe7
- 2.Qg5#
- 1...Qf8
- 2.Qg5#
- 1...Qg8
- 2.Qg5#
- 1...Qh8
- 2.Qg5#
- 1...Sd5
- 2.Rg7#
- 2.Qc2#
- 1...Sf5
- 2.Qxf5#
- 1...Qxf6!
- threat
- 1.Bxd8?
- threat
- 2.Sxe3#
- 2.Sge5#
- 2.Sh8#
- 1...Sxg4
- 2.Sh8#
- 1...hxg4
- 2.Sh8#
- 1...Bg8
- 2.Sh8#
- 1...Sd5
- 2.Sf2#
- 2.Sh2#
- 2.Se3#
- 2.Sge5#
- 2.Sf6#
- 2.Sgxh6#
- 1...Sd1
- 2.Sf2#
- 2.Sh2#
- 2.Se3#
- 2.Sge5#
- 2.Sf6#
- 2.Sgxh6#
- 2.Sh8#
- 1...Sf1
- 2.Sge5#
- 2.Sh8#
- 1...Sc2
- 2.Sf2#
- 2.Sh2#
- 2.Se3#
- 2.Sge5#
- 2.Sf6#
- 2.Sgxh6#
- 2.Sh8#
- 1...Sg2
- 2.Sf2#
- 2.Sh2#
- 2.Se3#
- 2.Sge5#
- 2.Sf6#
- 2.Sgxh6#
- 2.Sh8#
- 1...Sc4
- 2.Sf2#
- 2.Sh2#
- 2.Se3#
- 2.Sge5#
- 2.Sf6#
- 2.Sgxh6#
- 2.Sh8#
- 1...Sf5
- 2.Sge5#
- 2.Sfe5#
- 2.Sh8#
- 1...Kg7+!
- threat
- 1.Bh8?
- threat
- 2.Sge5#
- 1...Qxh8
- 2.Sxh8#
- 1...Sxg4
- 2.Qc2#
- 1...hxg4
- 2.h5#
- 1...Bg8!
- threat
- 1.Qc2+?
- 1...Sf5
- 2.Sfe5#
- 1...Sxc2!
- 1...Sf5
- 1.Qf5+?
- 1...Sxf5
- 2.Sfe5#
- 1...Kxf5!
- 1...Sxf5
- 1.Sgxh6+?
- Keys
- 1.Bd4!
- 1...Qxh4
- 2.Sh8#
- 1...Qxd7
- 2.Sh8#
- 1...Sxg4
- 2.Qc2#
- 1...hxg4
- 2.h5#
- 1...Qf6
- 2.Sge5#
- 1...Qe7
- 2.Sh8#
- 1...Bg8
- 2.Sh8#
- 1...Sd5
- 2.Sf6#
- 2.Qc2#
- 1...Qa5
- 2.Sxe3#
- 2.Sh8#
- 1...Qg5
- 2.Sh8#
- 1...Qb6
- 2.Sxe3#
- 2.Sh8#
- 1...Qc7
- 2.Sxe3#
- 2.Sh8#
- 1...Qa8
- 2.Sxe3#
- 1...Qb8
- 2.Sxe3#
- 1...Qc8
- 2.Sxe3#
- 1...Qe8
- 2.Sxe3#
- 1...Qf8
- 2.Sxe3#
- 1...Qg8
- 2.Sxe3#
- 1...Qh8
- 2.Sxe3#
- 2.Sxh8#
- 1...Sd1
- 2.Sf6#
- 2.Qc2#
- 1...Sf1
- 2.Qc2#
- 1...Sc2
- 2.Sf6#
- 2.Qxc2#
- 1...Sg2
- 2.Sf6#
- 2.Qc2#
- 1...Sc4
- 2.Sf6#
- 1...Sf5
- 2.Sfe5#
- 1...Qxh4
- 1.Bd4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 8
- Sets
- Q(f);N_GUARD::S(K)
- Q(f);N_GUARD,P_PINP(B)::S(K)
- Q(f);SBLOCK,XB(I)::R(C)+S(E),DCHECK
- Q(f);N_GUARD,XR(J)::S(K)
- Q(f);N_GUARD::S(K),XQ(f)
- B(e);S_CUTQ(f)::S(K)
- S(a);N_GUARD::QAB(G)
- S(a);N_GUARD::QAB(G),XS(a)
- S(a);SBLOCK::S(K)
- Tries
- Try
- S(E);CHECK,XP(d)
- Refutation
- K(c);CHECK,P-FLIGHT,XB(I)
- Try
- S(K);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(f);XR(J)::QAR1(G)
- S(a);P_SPINS(a),XS(E)::QAR1(G)
- P(b);P_SPINP(b),XS(E)::QAR1(G)
- Q(f);::R1(J)
- Q(f);::QAR1(G)
- S(a);N_GUARD::QAB1(G),XS(a)
- Refutation
- Q(f);XB(I)
- Try
- B(I);XQ(f)
- Threat
- DUALS(3)
- Vars
- S(a);P_SPINS(a),XS(E)::S(K)
- P(b);P_SPINP(b),XS(E)::S(K)
- B(e);::S(K)
- Refutation
- K(c);CHECK,P-FLIGHT
- Try
- B(I);
- Threat
- R(C)+S(E),DCHECK
- Vars
- Q(f);XB(I)::S(K),XQ(f)
- S(a);N_GUARD,P_SPINS(a),XS(E)::QAB(G)
- P(b);OGATE,P_SPINP(b),XS(E)::P(F)
- Refutation
- B(e);
- Try
- Q(G);CHECK
- Vars
- S(a);P_SPINS(a)::S(K)
- Refutation
- S(a);XQ(G)
- Try
- Q(G);CHECK
- Vars
- S(a);SBLOCK,XQ(G)::S(K)
- Refutation
- K(c);S_FLIGHT,XQ(G)
- Try
- Actual
- B(I);
- Vars
- Q(f);N_GUARD,XP(F)::S(K)
- Q(f);N_GUARD,XR(J)::S(K)
- S(a);N_GUARD,P_SPINS(a),XS(E)::QAB(G)
- P(b);OGATE,P_SPINP(b),XS(E)::P(F)
- Q(f);SBLOCK::R(C)+S(E),DCHECK
- Q(f);N_GUARD::S(K)
- B(e);S_CUTQ(f)::S(K)
- Q(f);N_GUARD::R(C)+S(E),XS(a)
- Q(f);N_GUARD,P_PINP(B)::R(C)+S(E),XS(a)
- S(a);N_GUARD::QAB(G)
- S(a);N_GUARD::R(C)+S(E)
- S(a);SBLOCK::S(K)
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).