MESON Chess Problem Database
Problem Display
PID: 223374 (8/2p5/2Kp2Qp/B1N1k2p/p5qR/P1P2p2/1n3P2/5B2 w - - 0 1)
Votruba, Anna
Oesterreichische Lesehalle, 1885
#2
9 + 9
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kf4
- 2.Qf6#
- 1...Qh3
- 2.Re4#
- 1...Qe6
- 2.Re4#
- 2.Qxe6#
- 1...Qd7+
- 2.Sxd7#
- 1...Qc8
- 2.Re4#
- 1...Qg1
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...Qg2
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...Qg3
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...Qb4
- 2.Sd7#
- 2.Qe6#
- 1...Qd4
- 2.Sd7#
- 2.Qe6#
- 2.cxd4#
- 1...Qe4+
- 2.Rxe4#
- 1...Qf4
- 2.Sd7#
- 2.Qe6#
- 1...Qg5
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...dxc5
- 2.Bxc7#
- 1...d5
- 2.Bxc7#
- 1...Kf4
- Tries
- 1.Bxc7?
- threat
- 2.Bxd6#
- 1...Qd7+
- 2.Sxd7#
- 1...Qe4+
- 2.Rxe4#
- 1...Kf4
- 2.Bxd6#
- 2.Qf6#
- 1...Qe6
- 2.Re4#
- 2.Qxe6#
- 1...Qc8
- 2.Re4#
- 1...Qd4
- 2.Sd7#
- 2.Qe6#
- 2.cxd4#
- 1...Sc4
- 2.Sd3#
- 1...Qxg6!
- threat
- 1.Rxg4?
- threat
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...dxc5
- 2.Bxc7#
- 2.Re4#
- 1...d5
- 2.Sd7#
- 2.Bxc7#
- 2.Qe6#
- 1...hxg4!
- threat
- 1.Qe6+?
- 1...Kf4
- 2.Qf6#
- 1...Qxe6!
- 1...Kf4
- 1.Bxc7?
- Keys
- 1.Bh3!
- 1...Qd7+
- 2.Sxd7#
- 1...Qe4+
- 2.Rxe4#
- 1...Kf4
- 2.Qf6#
- 1...Qxh3
- 2.Re4#
- 1...Qxh4
- 2.Qf5#
- 1...Qxg6
- 2.Sd7#
- 1...dxc5
- 2.Bxc7#
- 1...Qf5
- 2.Qxf5#
- 1...Qe6
- 2.Re4#
- 2.Qxe6#
- 1...Qc8
- 2.Re4#
- 2.Qg7#
- 1...Qg1
- 2.Sd7#
- 2.Re4#
- 2.Qf5#
- 2.Qe6#
- 1...Qg2
- 2.Sd7#
- 2.Re4#
- 2.Qf5#
- 2.Qe6#
- 1...Qg3
- 2.Sd7#
- 2.Re4#
- 2.Qf5#
- 2.Qe6#
- 1...Qb4
- 2.Sd7#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 1...Qc4
- 2.Qf5#
- 2.Qg7#
- 1...Qd4
- 2.Sd7#
- 2.Qf5#
- 2.Qe6#
- 2.Qg7#
- 2.cxd4#
- 1...Qf4
- 2.Sd7#
- 2.Qe6#
- 1...Qg5
- 2.Sd7#
- 2.Re4#
- 2.Qe6#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...d5
- 2.Bxc7#
- 1...Qd7+
- 1.Bh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- K(e);P_SPINQ(d),S_FLIGHT::QAR2(I)
- Q(d);OGATE::R1(E)
- Q(d);CHECK,N_GUARD::S(G),XQ(d)
- Q(d);CHECK,OGATE::R1(E),XQ(d)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- P(g);OGATEB,XS(G)::B(F),XP(i)
- P(g);OGATEB::B(F),XP(i)
- Tries
- Try
- B(F);P_PINP(g),XP(i)
- Threat
- B(F),XP(g)
- Vars
- Q(d);CHECK,N_GUARD::S(G),XQ(d)
- Q(d);CHECK,OGATE::R1(E),XQ(d)
- Q(d);OGATE,P_PINB(F)::R1(E)
- S(a);N_GUARD::S(G)
- Refutation
- Q(d);XQ(I)
- Try
- R(E);XQ(d)
- Threat
- DUALS(3)
- Refutation
- P(f);XR(E)
- Try
- Q(I);CHECK
- Vars
- K(e);P_SPINQ(d),S_FLIGHT::QAR2(I)
- Refutation
- Q(d);XQ(I)
- Try
- Actual
- B(A);
- Vars
- Q(d);CHECK,N_GUARD::S(G),XQ(d)
- Q(d);CHECK,OGATE::R1(E),XQ(d)
- K(e);P_SPINQ(d),S_FLIGHT::QAR2(I)
- Q(d);OGATE,XB(A)::R1(E)
- Q(d);N_GUARD,XR(E)::QAR1(I)
- Q(d);N_GUARD,XQ(I)::S(G)
- P(g);OGATEB,XS(G)::B(F),XP(i)
- Q(d);N_GUARD::QAR1(I),XQ(d)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- P(g);OGATEB::B(F),XP(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).