MESON Chess Problem Database
Problem Display
PID: 276162 (8/5Bn1/5nK1/2P1k3/p2p4/P3PP1N/Qb6/8 w - - 0 1)
Eichholz, Heinrich
Die Schwalbe, 1933
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qh2#
- 1...Bc1
- 2.Qh2#
- 1...Bxa3
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se4
- 2.Qd5#
- 2.f4#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sfe8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sge8
- 2.Qe6#
- 1...dxe3
- 2.Qxb2#
- 1...d3
- 2.Qxb2#
- 1...Ba1
- Tries
- 1.Sg1?
- 1...Bxa3
- 2.Qh2#
- 1...Ba1
- 2.Qh2#
- 1...Bc1
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se4
- 2.Qd5#
- 2.f4#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sfe8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sge8
- 2.Qe6#
- 1...d3
- 2.Qxb2#
- 1...dxe3!
- 1...Bxa3
- 1.Sf2?
- threat
- 2.Sd3#
- 2.f4#
- 1...Sd5
- 2.Sd3#
- 2.Sg4#
- 2.Qxd5#
- 1...Sfh5
- 2.Sd3#
- 2.Sg4#
- 2.Qd5#
- 1...Sgh5
- 2.Sd3#
- 2.Qe6#
- 1...Se6
- 2.Sd3#
- 2.Qxe6#
- 1...d3
- 2.Sxd3#
- 2.Qxb2#
- 2.f4#
- 1...dxe3!
- threat
- 1.Sf4?
- threat
- 2.Sd3#
- 1...d3
- 2.Sxd3#
- 2.Qxb2#
- 1...dxe3!
- threat
- 1.Sg5?
- threat
- 2.f4#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...dxe3!
- threat
- 1.Bg8?
- 1...Bxa3
- 2.Qh2#
- 1...dxe3
- 2.Qxb2#
- 1...Ba1
- 2.Qh2#
- 1...Bc1
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Se4
- 2.Qd5#
- 2.f4#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sfe8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sge8
- 2.Qe6#
- 1...d3
- 2.Qxb2#
- 1...Sxg8!
- 1...Bxa3
- 1.Qb3?
- threat
- 2.Qb8#
- 1...dxe3
- 2.Qxb2#
- 1...Se4
- 2.Qd5#
- 2.f4#
- 1...Sd5
- 2.Qxd5#
- 1...Sd7
- 2.Qd5#
- 1...Sfe8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sge8
- 2.Qe6#
- 1...axb3!
- threat
- 1.exd4+?
- 1...Bxd4
- 2.Qh2#
- 1...Kxd4!
- 1...Bxd4
- 1.e4?
- 1...Bxa3
- 2.Qh2#
- 1...Sxe4
- 2.Qd5#
- 2.f4#
- 1...d3
- 2.Qxb2#
- 1...Ba1
- 2.Qh2#
- 1...Bc3
- 2.Qh2#
- 1...Sg4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sfh5
- 2.Qd5#
- 1...Sd7
- 2.Qd5#
- 1...Sh7
- 2.Qd5#
- 1...Sfe8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf5
- 2.Qe6#
- 1...Sgh5
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sge8
- 2.Qe6#
- 1...Bc1!
- 1...Bxa3
- 1.Sg1?
- Keys
- 1.Qb1!
- threat
- 2.f4#
- 1...dxe3
- 2.Qxb2#
- 1...Se6
- 2.Qf5#
- 1...Sd5
- 2.Qe4#
- 1...Sfh5
- 2.Qe4#
- 1...Sgh5
- 2.Qf5#
- 1...d3
- 2.Qxb2#
- threat
- 1.Qb1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- B(a);OGATE::QAB(A)
- B(a);OGATE,XP(B)::QAB(A)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- P(c);OGATEB,XP(C)::QAB(A),XB(a)
- P(c);OGATEB::QAB(A),XB(a)
- Tries
- Try
- S(E);
- Vars
- B(a);OGATE,XP(B)::QAB(A)
- B(a);OGATE::QAB(A)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- P(c);OGATEB::QAB(A),XB(a)
- Refutation
- P(c);XP(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Refutation
- P(c);XP(C)
- Try
- S(E);
- Threat
- S(E)
- Refutation
- P(c);XP(C)
- Try
- S(E);
- Threat
- P(D)
- Vars
- S(e);N_GUARD::QAR1(A),XS(e)
- S(e);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- Refutation
- P(c);XP(C)
- Try
- B(H);
- Vars
- B(a);OGATE,XP(B)::QAB(A)
- P(c);OGATEB,XP(C)::QAB(A),XB(a)
- B(a);OGATE::QAB(A)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- P(c);OGATEB::QAB(A),XB(a)
- Refutation
- S(e);XB(H)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- P(c);OGATEB,XP(C)::QAB(A),XB(a)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(e);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- Refutation
- P(b);XQ(A)
- Try
- P(C);CHECK,XP(c)
- Vars
- B(a);OGATE,SBLOCK,XP(C)::QAB(A)
- Refutation
- K(d);S_FLIGHT,XP(C)
- Try
- P(C);
- Vars
- B(a);OGATE,XP(B)::QAB(A)
- P(c);OGATEB::QAB(A),XB(a)
- B(a);OGATE::QAB(A)
- S(e);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A),XS(e)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- Refutation
- B(a);
- Try
- Actual
- Q(A);
- Threat
- P(D)
- Vars
- P(c);OGATEB,XP(C)::QAB(A),XB(a)
- S(f);N_GUARD::QAR1(A)
- S(e);N_GUARD::QAR1(A)
- P(c);OGATEB::QAB(A),XB(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).