MESON Chess Problem Database
Problem Display
PID: 107449 (2n3BK/r2p1Qp1/2P1P1p1/2B1k1p1/1NppP3/6N1/4R3/3R4 w - - 0 1)
Zidek, Alexander
Schach-Report, 1990
#2
11 + 9
| 5454 | Near Snap | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sd6
- 2.Bxd4#
- 1...c3
- 2.Sd3#
- 1...dxc6
- 2.Sxc6#
- 1...d5
- 2.exd5#
- 1...d6
- 2.Bxd4#
- 1...Sd6
- Tries
- 1.Kxg7?
- threat
- 2.Qf6#
- 1...dxc6
- 2.Sxc6#
- 1...d5
- 2.exd5#
- 1...d6
- 2.Bxd4#
- 1...dxe6!
- threat
- 1.Sd5?
- threat
- 2.Qxg7#
- 1...dxe6
- 2.Qxe6#
- 1...d6
- 2.Bxd4#
- 1...dxc6!
- threat
- 1.Rf1?
- threat
- 2.Qxg7#
- 1...dxc6
- 2.Sxc6#
- 1...dxe6
- 2.Qxe6#
- 1...d5
- 2.exd5#
- 1...d6!
- threat
- 1.Rf2?
- threat
- 2.Qxg7#
- 1...dxc6
- 2.Sxc6#
- 1...dxe6
- 2.Qxe6#
- 1...d6
- 2.Bxd4#
- 1...d5!
- threat
- 1.Qf6+?
- 1...Kxf6
- 2.e5#
- 1...gxf6!
- 1...Kxf6
- 1.Kxg7?
- Keys
- 1.Sh5!
- threat
- 2.Qxg7#
- 1...gxh5
- 2.Qf5#
- 1...dxc6
- 2.Sxc6#
- 1...dxe6
- 2.Qxe6#
- 1...d5
- 2.exd5#
- 1...d6
- 2.Bxd4#
- threat
- 1.Sh5!
Anticipated by 63172(1979)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- S(i);SBLOCK::B(F),XP(b)
- P(a);N_GUARD::S(D)
- P(g);XP(G)::S(D),XP(g)
- P(g);OGATE::R(B)+P(E),XP(g)
- P(g);SBLOCK::B(F),XP(b)
- Tries
- Try
- K(K);S_FLIGHT,XP(h)
- Threat
- QAB1(I)
- Vars
- P(g);P_PINQ(I),XP(G)::S(D),XP(g)
- P(g);OGATE,P_PINQ(I)::R(B)+P(E),XP(g)
- P(g);P_PINQ(I),SBLOCK::B(F),XP(b)
- Refutation
- P(g);P_PINQ(I),XP(H)
- Try
- S(D);
- Threat
- QAB(I),XP(h)
- Vars
- P(g);OGATE,XP(H)::QAR1(I),XP(g)
- P(g);SBLOCK::B(F),XP(b)
- Refutation
- P(g);XP(G)
- Try
- R(A);
- Threat
- QAB(I),XP(h)
- Vars
- P(g);XP(G)::S(D),XP(g)
- P(g);OGATE,XP(H)::QAR1(I),XP(g)
- P(g);OGATE::R(B)+P(E),XP(g)
- Refutation
- P(g);
- Try
- R(B);
- Threat
- QAB(I),XP(h)
- Vars
- P(g);XP(G)::S(D),XP(g)
- P(g);OGATE,XP(H)::QAR1(I),XP(g)
- P(g);SBLOCK::B(F),XP(b)
- Refutation
- P(g);
- Try
- Q(I);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XQ(I)::P(E)
- Refutation
- P(h);XQ(I)
- Try
- Actual
- S(C);
- Threat
- QAB(I),XP(h)
- Vars
- P(e);N_GUARD,XS(C)::QAR1(I)
- P(g);XP(G)::S(D),XP(g)
- P(g);OGATE,XP(H)::QAR1(I),XP(g)
- P(g);OGATE::R(B)+P(E),XP(g)
- P(g);SBLOCK::B(F),XP(b)
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).