MESON Chess Problem Database
Problem Display
PID: 255884 (8/4p3/3p1n1R/1Pnk4/N2bR1N1/7B/4K3/2Q5 w - - 0 1)
Bohm, Joseph
Wiener Schachzeitung, 1937
#2
8 + 6
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qc4#
- 1...Bg1
- 2.Sc3#
- 2.Qc4#
- 1...Bb2
- 2.Qc4#
- 1...Bf2
- 2.Sc3#
- 2.Qc4#
- 1...Bc3
- 2.Sxc3#
- 1...Be3
- 2.Sc3#
- 2.Qc4#
- 1...Be5
- 2.Qc4#
- 1...Sb3
- 2.Qc6#
- 1...Sd3
- 2.Qc6#
- 1...Sxa4
- 2.Qc6#
- 1...Sa6
- 2.Qc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Scd7
- 2.Qc6#
- 1...Sxe4
- 2.Sb6#
- 1...e5
- 2.Sxf6#
- 1...Ba1
- Tries
- 1.Se3+?
- 1...Bxe3
- 2.Sc3#
- 2.Qc4#
- 1...Kxe4!
- 1...Bxe3
- 1.Sxf6+?
- 1...Bxf6
- 2.Qc4#
- 1...exf6!
- 1...Bxf6
- 1.Bg2?
- threat
- 2.Sb6#
- 2.Re5#
- 1...Sxa4
- 2.Re5#
- 2.Qc6#
- 1...Sfxe4
- 2.Sb6#
- 1...Sxg4
- 2.Sb6#
- 1...Be5
- 2.Qc4#
- 1...e5
- 2.Rxe5#
- 1...Ba1
- 2.Sb6#
- 2.Se3#
- 2.Qc4#
- 1...Bg1
- 2.Sc3#
- 2.Sb6#
- 2.Qc4#
- 1...Bb2
- 2.Sb6#
- 2.Se3#
- 2.Qc4#
- 1...Bf2
- 2.Sc3#
- 2.Sb6#
- 2.Qc4#
- 1...Bc3
- 2.Sxc3#
- 2.Sb6#
- 2.Se3#
- 1...Be3
- 2.Sc3#
- 2.Sb6#
- 2.Sxe3#
- 2.Qc4#
- 1...Sb3
- 2.Re5#
- 2.Qc6#
- 1...Sd3
- 2.Re5#
- 2.Qc6#
- 1...Sa6
- 2.Re5#
- 2.Qc6#
- 1...Se6
- 2.Re5#
- 2.Qc6#
- 1...Sb7
- 2.Re5#
- 2.Qc6#
- 1...Scd7
- 2.Re5#
- 2.Qc6#
- 1...Sfd7
- 2.Re5#
- 1...Scxe4!
- threat
- 1.Rh5+?
- 1...Kxe4
- 2.Bg2#
- 1...Be5
- 2.Qc4#
- 1...e5
- 2.Sxf6#
- 1...Sxh5!
- 1...Kxe4
- 1.Qc2?
- threat
- 2.Sb6#
- 1...Sxa4
- 2.Qc6#
- 1...Scxe4
- 2.Qb3#
- 2.Qa2#
- 1...Be5
- 2.Se3#
- 2.Qc4#
- 1...Sd3
- 2.Qc6#
- 1...e5
- 2.Sxf6#
- 1...Sb3
- 2.Qc6#
- 1...Sa6
- 2.Qc6#
- 1...Se6
- 2.Qc6#
- 1...Sb7
- 2.Qc6#
- 1...Scd7
- 2.Qc6#
- 1...Sfd7!
- threat
- 1.Se3+?
- Keys
- 1.Qc3!
- threat
- 2.Qxd4#
- 1...Kxe4
- 2.Qf3#
- 1...Bxc3
- 2.Sxc3#
- 1...Scxe4
- 2.Qb3#
- 1...Sfxe4
- 2.Sb6#
- 1...Be5
- 2.Qc4#
- 1...e5
- 2.Sxf6#
- 1...Bg1
- 2.Qc4#
- 1...Bf2
- 2.Qc4#
- 1...Be3
- 2.Qc4#
- 1...Sb3
- 2.Qc6#
- 1...Se6
- 2.Qc6#
- threat
- 1.Qc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- B(a);::QAB1(A)
- B(a);N_GUARD::S(D),XB(a)
- S(b);OGATE::QAB1(A)
- S(b);OGATE,XS(D)::QAB1(A)
- S(e);SBLOCK,XR(E)::S(D)
- P(f);N_GUARD,S_CUTB(a)::S(F),XS(e)
- Tries
- Try
- S(F);CHECK
- Refutation
- K(c);S_FLIGHT,XR(E)
- Try
- S(F);CHECK,XS(e)
- Vars
- B(a);XS(F)::QAB1(A)
- Refutation
- P(f);XS(F)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(e);P_SPINS(e),XR(E)::S(D)
- S(e);XS(F)::S(D)
- B(a);::QAB1(A)
- P(f);::B(C)+R(E),DCHECK,XP(f)
- S(e);::B(C)+R(E),DCHECK
- Refutation
- S(b);P_SPINS(b),XR(E)
- Try
- R(H);CHECK
- Vars
- K(c);S_CUTB(a),S_CUTP(f),S_CUTS(e),S_FLIGHT,XR(E)::B(C)
- B(a);P_SPINB(a)::QAB1(A)
- P(f);P_SPINP(f)::S(F),XS(e)
- Refutation
- S(e);XR(H)
- Try
- Q(A);
- Threat
- S(D)
- Vars
- S(b);OGATE,XS(D)::QAB1(A)
- S(b);OGATE::QAB1(A)
- P(f);N_GUARD,S_CUTB(a)::S(F),XS(e)
- Refutation
- S(e);
- Try
- Actual
- Q(A);
- Threat
- QAR1(A),XB(a)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(E)::QAB1(A)
- B(a);XQ(A)::S(D),XB(a)
- S(b);N_GUARD,SBLOCK,XR(E)::QAB(A)
- S(e);SBLOCK,XR(E)::S(D)
- B(a);::QAB1(A)
- P(f);N_GUARD,S_CUTB(a)::S(F),XS(e)
- S(b);OGATE::QAB1(A)
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).