MESON Chess Problem Database
Problem Display
PID: 236494 (N4nB1/1q6/4r1p1/N1Pk1P2/3P1BQ1/2P2K2/b7/8 w - - 0 1)
Ahues, Herbert Siegfried Oskar
1st HM., Rochade Europa, 1996
#2
10 + 6
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qa6
- 2.Sc7#
- 1...Qc8
- 2.Sb6#
- 1...Qb1
- 2.Sc7#
- 1...Qb2
- 2.Sc7#
- 1...Qb3
- 2.Sc7#
- 1...Qb4
- 2.Sc7#
- 1...Qb5
- 2.Sc7#
- 1...Qb6
- 2.Sxb6#
- 1...Qc7
- 2.Sxc7#
- 1...Qd7
- 2.Sb6#
- 1...Qe7
- 2.Sb6#
- 1...Qg7
- 2.Sb6#
- 1...Qh7
- 2.Sb6#
- 1...Sd7
- 2.Bxe6#
- 1...Sh7
- 2.Bxe6#
- 1...gxf5
- 2.Qxf5#
- 1...Qa6
- Tries
- 1.Bc1?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Bd2?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Bh2?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Be3?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Bg3?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Be5?
- threat
- 2.Qe4#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...gxf5!
- threat
- 1.Bg5?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Bh6?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Bc7?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Bb1
- 2.c4#
- 1...Qb1!
- threat
- 1.Bb8?
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- 1...Qf7!
- threat
- 1.Qg2?
- threat
- 2.Kf2#
- 2.Kg3#
- 2.Kg4#
- 1...gxf5
- 2.Kf2#
- 2.Kg3#
- 1...Qf7
- 2.Qxa2#
- 1...Qb1
- 2.Sc7#
- 1...Qb2
- 2.Sc7#
- 1...Bb1!
- threat
- 1.Bc1?
- Keys
- 1.Bd6!
- threat
- 2.Qe4#
- 1...gxf5
- 2.Qxf5#
- 1...Qf7
- 2.Sb6#
- 1...Qb1
- 2.Sc7#
- 1...Bb1
- 2.c4#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(e);N_GUARD::S(I)
- Q(e);N_GUARD,P_PINP(A)::S(I)
- Q(e);N_GUARD::S(I),XQ(e)
- S(f);N_GUARD::B(J),XR(c)
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Tries
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- P(d);XP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);
- Try
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(A)
- Refutation
- Q(e);N_SPINR(c),P_PINP(H)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(e);N_GUARD,N_SPINR(c)::QAB(E),XB(a)
- Q(e);N_GUARD::S(I)
- Refutation
- B(a);
- Try
- Actual
- B(D);
- Threat
- QAB1(E)
- Vars
- P(d);OGATE,XP(H)::QAR2(E),XP(d)
- Q(e);N_GUARD,N_SPINR(c),P_PINP(H)::S(I)
- Q(e);N_GUARD::S(I)
- B(a);N_GUARD::P(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).