MESON Chess Problem Database
Problem Display
PID: 81928 (r2N4/pb6/2Q1B2B/4p1r1/pP1k2p1/2n5/3P1NK1/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Die Schwalbe, 2000
#2
8 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Be3#
- 2.dxc3#
- 1...Rh5
- 2.Be3#
- 2.dxc3#
- 1...Rg6
- 2.Be3#
- 2.dxc3#
- 1...Rg7
- 2.Be3#
- 2.dxc3#
- 1...Rg8
- 2.Be3#
- 2.dxc3#
- 1...Ba6
- 2.Qxc3#
- 2.Qc5#
- 1...Bxc6+
- 2.Sxc6#
- 1...Bc8
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...Se4
- 2.Qc4#
- 1...Sd5
- 2.Qc5#
- 1...e4
- 2.Qxc3#
- 1...Rf5
- Tries
- 1.Sxb7?
- threat
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...e4
- 2.Qxc3#
- 1...Sb1
- 2.Qe4#
- 2.Qd5#
- 2.Qd7#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Sd1
- 2.Qe4#
- 2.Qd5#
- 2.Qd7#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Sa2
- 2.Qe4#
- 2.Qd5#
- 2.Qd7#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Se2
- 2.Qe4#
- 2.Qd5#
- 2.Qd7#
- 2.Qc4#
- 2.Qc5#
- 2.Qd6#
- 1...Se4
- 2.Qxe4#
- 2.Qd5#
- 2.Qc4#
- 1...Sb5
- 2.Qe4#
- 2.Qd5#
- 2.Qc4#
- 2.Qc5#
- 1...Sd5
- 2.Qxd5#
- 2.Qc5#
- 1...Rc8!
- threat
- 1.Ba2?
- threat
- 2.Se6#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Qxc3#
- 1...Rg6
- 2.Be3#
- 2.dxc3#
- 1...Bc8
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd8!
- threat
- 1.Bb3?
- threat
- 2.Se6#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Qxc3#
- 1...Rg6
- 2.Be3#
- 2.dxc3#
- 1...Bc8
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd8!
- threat
- 1.Bf7?
- threat
- 2.Se6#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Qxc3#
- 1...Rg6
- 2.Be3#
- 2.dxc3#
- 1...Bc8
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd8!
- threat
- 1.Bg8?
- threat
- 2.Se6#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Qxc3#
- 1...Rg6
- 2.Be3#
- 2.dxc3#
- 1...Bc8
- 2.Qxc3#
- 2.Qc4#
- 2.Qc5#
- 1...Rxd8!
- threat
- 1.Bxg5?
- threat
- 2.Be3#
- 2.dxc3#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Bf6#
- 2.Qxc3#
- 2.Qc5#
- 1...Sb1
- 2.Be3#
- 1...Sa2
- 2.Be3#
- 1...Se2
- 2.Be3#
- 1...Se4
- 2.Be3#
- 2.Qc4#
- 1...Sb5
- 2.Be3#
- 1...Sd5
- 2.Qc5#
- 1...Sd1!
- threat
- 1.Qxb7?
- threat
- 2.Sc6#
- 1...Rxd8
- 2.Qxa7#
- 1...Sd5
- 2.Qxd5#
- 1...Rc8!
- threat
- 1.Sxb7?
- Keys
- 1.Bf8!
- threat
- 2.Bc5#
- 1...Bxc6+
- 2.Sxc6#
- 1...e4
- 2.Qxc3#
- 1...Se4
- 2.Qc4#
- 1...Sd5
- 2.Qc5#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(h);CHECK,XQ(E)::S(H),XB(h)
- S(a);N_PINQ(E)::QAR1(E)
- S(a);N_PINQ(E)::QAB1(E)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- Tries
- Try
- S(H);N_SPINQ(E),XB(h)
- Threat
- DUALS(3)
- Vars
- P(e);::QAB1(E),XS(a)
- Refutation
- R(i);
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- Refutation
- R(i);XS(H)
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- Refutation
- R(i);XS(H)
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- Refutation
- R(i);XS(H)
- Try
- B(F);
- Threat
- S(H)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- Refutation
- R(i);XS(H)
- Try
- B(G);XR(f)
- Threat
- DUALS(2)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- S(a);::B(G)
- S(a);N_PINQ(E)::QAB1(E)
- Refutation
- S(a);
- Try
- Q(E);N_SPINQ(E),XB(h)
- Threat
- S(H)
- Vars
- R(i);N_GUARD,XS(H)::QAB(E),XP(g)
- S(a);N_GUARD::QAR1(E),XS(a)
- Refutation
- R(i);
- Try
- Actual
- B(G);
- Threat
- B(G)
- Vars
- B(h);CHECK,XQ(E)::S(H),XB(h)
- P(e);N_PINQ(E)::QAB1(E),XS(a)
- S(a);N_PINQ(E)::QAR1(E)
- S(a);N_PINQ(E)::QAB1(E)
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).