MESON Chess Problem Database
Problem Display
PID: 98930 (1NR1KN2/1p4P1/2p2PQp/1P1pk2p/1BP3bR/3B2P1/2PP4/8 w - - 0 1)
Valuska, Jan
Problemas, 1970
#2
15 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Sbd7#
- 2.Qf5#
- 1...Be2
- 2.Sbd7#
- 2.Qf5#
- 1...Bf3
- 2.Sbd7#
- 2.Qf5#
- 1...Bf5
- 2.Qxf5#
- 1...Bd7+
- 2.Sbxd7#
- 1...b6
- 2.Sxc6#
- 1...Bd1
- Tries
- 1.Sbd7+?
- 1...Kd4
- 2.Se6#
- 2.Bc3#
- 2.Bc5#
- 2.c3#
- 1...Bxd7+!
- 1...Kd4
- 1.Sfd7+?
- 1...Kd4
- 2.Bc3#
- 2.Bc5#
- 2.c3#
- 1...Ke6
- 2.Qf7#
- 2.f7#
- 2.g8Q#
- 2.g8B#
- 1...Bxd7+!
- 1...Kd4
- 1.Bd6+?
- 1...Kd4
- 2.Se6#
- 2.c3#
- 1...Kxd6!
- 1...Kd4
- 1.Rxc6?
- 1...Bd7+
- 2.Sbxd7#
- 2.Sfxd7#
- 1...Kd4
- 2.Bc3#
- 1...dxc4
- 2.Qe4#
- 1...bxc6
- 2.Sxc6#
- 1...Bd1
- 2.Sbd7#
- 2.Sfd7#
- 2.Bd6#
- 2.Re6#
- 2.Qf5#
- 1...Be2
- 2.Sbd7#
- 2.Sfd7#
- 2.Bd6#
- 2.Re6#
- 2.Qf5#
- 1...Bf3
- 2.Sbd7#
- 2.Sfd7#
- 2.Bd6#
- 2.Re6#
- 2.Qf5#
- 1...Bh3
- 2.Bd6#
- 1...Bf5
- 2.Bd6#
- 2.Qxf5#
- 1...Be6
- 2.Bd6#
- 2.Rxe6#
- 1...Bc8
- 2.Bd6#
- 1...d4
- 2.Bd6#
- 2.Qe4#
- 1...b6!
- 1...Bd7+
- 1.Qe4+?
- 1...Kxf6
- 2.Qe7#
- 1...dxe4!
- 1...Kxf6
- 1.Qf5+?
- 1...Kd4
- 2.Se6#
- 2.Qf4#
- 2.c3#
- 1...Bxf5!
- 1...Kd4
- 1.Qxg4?
- threat
- 2.Sbd7#
- 2.Sfd7#
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 2.Qf4#
- 1...Kxf6
- 2.Sbd7#
- 2.Sfd7#
- 1...dxc4
- 2.Qf5#
- 2.Qe6#
- 2.Qd4#
- 1...c5
- 2.Qe6#
- 2.Qf4#
- 1...d4
- 2.Sbd7#
- 2.Sfd7#
- 2.Qf5#
- 2.Qe6#
- 2.Qxd4#
- 2.Qf4#
- 1...hxg4!
- threat
- 1.Qg5+?
- 1...Kd4
- 2.Se6#
- 2.Qe3#
- 2.Qf4#
- 1...Bf5
- 2.Sbd7#
- 2.Qxf5#
- 1...hxg5!
- 1...Kd4
- 1.Sbd7+?
- Keys
- 1.Rd8!
- 1...Bd7+
- 2.Sbxd7#
- 1...Kd4
- 2.Qe4#
- 1...dxc4
- 2.Bc3#
- 1...cxb5
- 2.Rxd5#
- 1...Bd1
- 2.Sbd7#
- 2.Bd6#
- 2.Qf5#
- 1...Be2
- 2.Sbd7#
- 2.Bd6#
- 2.Qf5#
- 1...Bf3
- 2.Sbd7#
- 2.Bd6#
- 2.Qf5#
- 1...Bh3
- 2.Bd6#
- 1...Bf5
- 2.Bd6#
- 2.Qxf5#
- 1...Be6
- 2.Bd6#
- 1...Bc8
- 2.Bd6#
- 1...d4
- 2.Bd6#
- 1...c5
- 2.Rxd5#
- 1...b6
- 2.Sxc6#
- 1...Bd7+
- 1.Rd8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::QAR1(J),XB(a)
- B(a);CHECK,N_GUARD::S(L),XB(a)
- P(g);N_GUARD::S(L),XP(e)
- Tries
- Try
- S(L);CHECK
- Refutation
- B(a);CHECK,XS(L)
- Try
- S(O);CHECK
- Refutation
- B(a);CHECK,XS(O)
- Try
- B(E);CHECK
- Refutation
- K(c);S_FLIGHT,XB(E)
- Try
- R(M);XP(e)
- Vars
- K(c);P_SPINB(a),S_FLIGHT::B(E)
- P(b);N_GUARD,XP(F)::QAR1(J)
- P(g);XR(M)::S(L),XP(g)
- B(a);::B(E)
- Refutation
- P(g);
- Try
- Q(J);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XP(I)::QAB1(J)
- Refutation
- P(b);XQ(J)
- Try
- Q(J);CHECK
- Refutation
- B(a);XQ(J)
- Try
- Q(J);XB(a)
- Threat
- DUALS(6)
- Refutation
- P(d);XQ(J)
- Try
- Q(J);CHECK
- Refutation
- P(f);XQ(J)
- Try
- Actual
- R(M);
- Vars
- B(a);CHECK,N_GUARD::S(L),XB(a)
- K(c);P_SPINB(a),P_SPINP(b),S_FLIGHT::QAR1(J)
- P(b);N_GUARD,XP(F)::B(E)
- P(e);N_GUARD,XP(H)::R1(M),XP(b)
- B(a);::B(E)
- P(b);SBLOCK::B(E)
- P(e);N_GUARD::R1(M),XP(b)
- P(g);N_GUARD::S(L),XP(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).