MESON Chess Problem Database
Problem Display
PID: 272773 (1N3qB1/2p4r/2pnp3/4knB1/b1Pp4/1pNKp3/6Q1/8 w - - 0 1)
Zajic, Helmut
Schach-Aktiv, 1995
#2
7 + 12
| 15601 | Albrecht-Leiss-Degener Collection | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sd7#
- 1...Rh2
- 2.Sd7#
- 1...Rh3
- 2.Sd7#
- 1...Rh4
- 2.Sd7#
- 1...Rh5
- 2.Sd7#
- 1...Rh6
- 2.Sd7#
- 1...Rd7
- 2.Sxd7#
- 1...Rh8
- 2.Sd7#
- 1...Rh1
- Tries
- 1.Bf4+?
- 1...Kf6
- 2.Qg5#
- 1...Kxf4!
- 1...Kf6
- 1.Qxc6?
- threat
- 2.Qc5#
- 1...Bxc6
- 2.Sxc6#
- 1...Sxc4
- 2.Qxe6#
- 1...Se4
- 2.Qxe6#
- 1...Sb5
- 2.Qxe6#
- 1...Sb7
- 2.Qxe6#
- 1...Sf7
- 2.Sd7#
- 1...Sc8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...Se7!
- threat
- 1.Qh2+?
- 1...Rxh2
- 2.Sd7#
- 1...Sg3!
- 1...Rxh2
- 1.Bf4+?
- Keys
- 1.Qg4!
- threat
- 2.Qf4#
- 1...Sg3
- 2.Qxe6#
- 1...Rh4
- 2.Sd7#
- 1...Sh4
- 2.Qxe6#
- 1...Sh6
- 2.Qxe6#
- 1...Se7
- 2.Sd7#
- 2.Qxe6#
- 1...Sg7
- 2.Sd7#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(k);N_GUARD::S(F)
- R(k);N_GUARD::S(F),XR(k)
- Tries
- Try
- B(E);CHECK
- Vars
- K(e);S_FLIGHT::QAB1(A)
- Refutation
- K(e);S_FLIGHT,XB(E)
- Try
- Q(A);XP(g)
- Threat
- QAR2(A)
- Vars
- B(c);XQ(A)::S(F),XB(c)
- S(h);OGATE,XP(D)::QAR1(A),XP(i)
- S(h);OGATE::QAR1(A),XP(i)
- S(h);S_CUTR(k)::S(F)
- Refutation
- S(f);
- Try
- Q(A);CHECK
- Vars
- R(k);XQ(A)::S(F)
- Refutation
- S(f);P_SPINS(f)
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(f);OGATE::QAR1(A),XP(i)
- R(k);N_GUARD::S(F)
- S(f);S_CUTR(k)::S(F)
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).