MESON Chess Problem Database
Problem Display
PID: 196856 (b7/3Q4/4P3/2p1N1K1/4k2p/4p1Pp/3pRnr1/B1bn1N1B w - - 0 1)
Ludwig, KW
Deutsches Wochenschach, 1919
#2
9 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ba3
- 2.Sxd2#
- 1...Bd5
- 2.Qh7#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sb2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Sxh1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sg4
- 2.Qd3#
- 1...h2
- 2.Bxg2#
- 1...hxg3
- 2.Sxg3#
- 1...c4
- 2.Qd4#
- 1...Ba3
- Tries
- 1.Bb2?
- 1...Sxb2
- 2.Rxe3#
- 1...Sxh1
- 2.Qd3#
- 1...hxg3
- 2.Sxg3#
- 1...Sc3
- 2.Rxe3#
- 1...Bd5
- 2.Qh7#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd3
- 2.Qxd3#
- 1...Sg4
- 2.Qd3#
- 1...h2
- 2.Bxg2#
- 1...c4
- 2.Qd4#
- 1...Bxb2!
- 1...Sxb2
- 1.Qa4+?
- 1...c4
- 2.Qxc4#
- 2.Qxa8#
- 1...Kd5!
- 1...c4
- 1.g4?
- 1...Sxh1
- 2.Qd3#
- 1...Sxg4
- 2.Qd3#
- 1...Sb2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Bd5
- 2.Qh7#
- 1...Ba3
- 2.Sxd2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd3
- 2.Qxd3#
- 1...h2
- 2.Bxg2#
- 1...c4
- 2.Qd4#
- 1...Bb2!
- 1...Sxh1
- 1.e7?
- 1...Sxh1
- 2.Qd3#
- 1...hxg3
- 2.Sxg3#
- 1...Sb2
- 2.Rxe3#
- 1...Sc3
- 2.Rxe3#
- 1...Bd5
- 2.Qf5#
- 1...Ba3
- 2.Sxd2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd3
- 2.Qxd3#
- 1...Sg4
- 2.Qd3#
- 1...h2
- 2.Bxg2#
- 1...c4
- 2.Qd4#
- 1...Bb2!
- 1...Sxh1
- 1.Bb2?
- Keys
- 1.Bc3!
- 1...Sxc3
- 2.Rxe3#
- 1...Sxh1
- 2.Qd3#
- 1...hxg3
- 2.Sxg3#
- 1...Bb2
- 2.Sxd2#
- 1...Ba3
- 2.Sxd2#
- 1...Bd5
- 2.Qh7#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sb2
- 2.Rxe3#
- 1...Sd3
- 2.Qxd3#
- 1...Sg4
- 2.Qd3#
- 1...h2
- 2.Bxg2#
- 1...c4
- 2.Qd4#
- 1...Sxc3
- 1.Bc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);N_GUARD::S(B),XP(c)
- B(k);SBLOCK::QAB(I)
- B(k);N_GUARD::QAB(I),XB(k)
- S(b);N_GUARD::R1(D),XP(f)
- S(d);N_GUARD,N_SPINR(e),XB(C)::QAB1(I)
- S(d);N_GUARD::QAB1(I),XS(d)
- S(d);N_GUARD,N_PINP(E)::QAB1(I)
- P(g);N_GUARD::B(C),XR(e)
- P(i);XP(E)::S(B),XP(i)
- P(j);N_GUARD::QAR1(I)
- Tries
- Try
- B(A);
- Vars
- S(b);N_GUARD,XB(A)::R1(D),XP(f)
- S(d);N_GUARD,N_SPINR(e),XB(C)::QAB1(I)
- P(i);XP(E)::S(B),XP(i)
- S(b);N_GUARD::R1(D),XP(f)
- B(k);SBLOCK::QAB(I)
- B(k);N_GUARD::QAB(I),XB(k)
- S(d);N_GUARD::QAB1(I),XS(d)
- S(d);N_GUARD,N_PINP(E)::QAB1(I)
- P(g);N_GUARD::B(C),XR(e)
- P(j);N_GUARD::QAR1(I)
- Refutation
- B(a);XB(A)
- Try
- Q(I);CHECK
- Refutation
- K(h);N_SPINP(f),S_FLIGHT
- Try
- P(E);
- Vars
- S(d);N_GUARD,N_SPINR(e),XB(C)::QAB1(I)
- S(d);N_GUARD,XP(E)::QAB1(I)
- S(b);N_GUARD::R1(D),XP(f)
- B(k);SBLOCK::QAB(I)
- B(a);N_GUARD::S(B),XP(c)
- B(k);N_GUARD::QAB(I),XB(k)
- S(d);N_GUARD::QAB1(I),XS(d)
- P(g);N_GUARD::B(C),XR(e)
- P(j);N_GUARD::QAR1(I)
- Refutation
- B(a);
- Try
- P(H);
- Vars
- S(d);N_GUARD,N_SPINR(e),XB(C)::QAB1(I)
- P(i);XP(E)::S(B),XP(i)
- S(b);N_GUARD::R1(D),XP(f)
- B(k);SBLOCK::QAB1(I)
- B(a);N_GUARD::S(B),XP(c)
- B(k);N_GUARD::QAB(I),XB(k)
- S(d);N_GUARD::QAB1(I),XS(d)
- S(d);N_GUARD,N_PINP(E)::QAB1(I)
- P(g);N_GUARD::B(C),XR(e)
- P(j);N_GUARD::QAR1(I)
- Refutation
- B(a);
- Try
- Actual
- B(A);
- Vars
- S(b);N_GUARD,XB(A)::R1(D),XP(f)
- S(d);N_GUARD,N_SPINR(e),XB(C)::QAB1(I)
- P(i);XP(E)::S(B),XP(i)
- B(a);N_GUARD::S(B),XP(c)
- B(k);SBLOCK::QAB(I)
- B(k);N_GUARD::QAB(I),XB(k)
- S(b);N_GUARD::R1(D),XP(f)
- S(d);N_GUARD::QAB1(I),XS(d)
- S(d);N_GUARD,N_PINP(E)::QAB1(I)
- P(g);N_GUARD::B(C),XR(e)
- P(j);N_GUARD::QAR1(I)
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).