MESON Chess Problem Database
Problem Display
PID: 83673 (4N3/B1n2Qb1/4P3/K2pk2r/R3Pp1p/NB4pp/2bR1n2/2r3q1 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Europe Echecs, 1961
#2
10 + 13
| 56 | The Problemist | 2009 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf5
- 2.Qxf5#
- 1...Rh6
- 2.Qf5#
- 1...Rh7
- 2.Qf5#
- 1...Rh8
- 2.Qf5#
- 1...Bxe4
- 2.Bd4#
- 1...Bf6
- 2.Qxf6#
- 1...Bh6
- 2.Qf6#
- 1...Bf8
- 2.Qf6#
- 1...Sb5
- 2.Rxd5#
- 1...Sa6
- 2.Rxd5#
- 1...Sxe6
- 2.Rxd5#
- 1...Sa8
- 2.Rxd5#
- 1...Sxe8
- 2.Rxd5#
- 1...dxe4
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 1...Rf5
- Tries
- 1.Bxd5?
- threat
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Bxa4
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Sxe4
- 2.Sc4#
- 1...Sxd5
- 2.Rxd5#
- 1...Sxe6
- 2.Sc4#
- 2.Qxe6#
- 1...Sxe8
- 2.Sc4#
- 1...Qd1
- 2.Sc4#
- 2.Bd4#
- 2.Qxc7#
- 2.Qxg7#
- 1...Qf1
- 2.Bd4#
- 2.Qxh5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Rf5
- 2.Sc4#
- 2.Bd4#
- 2.Qxf5#
- 2.Qxc7#
- 1...Rg5
- 2.Sc4#
- 2.Bd4#
- 2.Qxc7#
- 1...Rh6
- 2.Sc4#
- 2.Bd4#
- 2.Qf5#
- 2.Qxc7#
- 1...Rh7
- 2.Sc4#
- 2.Bd4#
- 2.Qf5#
- 2.Qxc7#
- 1...Rh8
- 2.Sc4#
- 2.Bd4#
- 2.Qf5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Bb1
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Bd1
- 2.Bd4#
- 2.Qxg7#
- 1...Bb3
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Bd3
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Bf6
- 2.Sc4#
- 2.Bd4#
- 2.Qxf6#
- 2.Qxc7#
- 1...Bh6
- 2.Sc4#
- 2.Bd4#
- 2.Qf6#
- 2.Qxc7#
- 1...Bf8
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 2.Qf6#
- 1...Bh8
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 2.Qxc7#
- 1...Sd1
- 2.Sc4#
- 2.Qxh5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Sh1
- 2.Sc4#
- 2.Qxh5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Sd3
- 2.Sc4#
- 2.Qxh5#
- 2.Qxc7#
- 2.Qxg7#
- 1...Sg4
- 2.Sc4#
- 2.Qxh5#
- 2.Qxc7#
- 1...Sb5
- 2.Sc4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Sa6
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...Sa8
- 2.Sc4#
- 2.Bd4#
- 2.Qxh5#
- 2.Qxg7#
- 1...f3
- 2.Sc4#
- 2.Bd4#
- 2.Qxc7#
- 1...Bxe4!
- threat
- 1.Bxd5?
- Keys
- 1.exd5!
- threat
- 2.Qxf4#
- 1...Sxd5
- 2.Rxd5#
- 1...Sxe6
- 2.Qxe6#
- 1...Bf6
- 2.Qxf6#
- 1...Rf5
- 2.Qxc7#
- 1...Be4
- 2.Bd4#
- 1...Bf5
- 2.Qxg7#
- 1...Bh6
- 2.Qf6#
- 1...Sd3
- 2.Qxh5#
- 1...Se4
- 2.Sc4#
- 1...f3
- 2.Qf4#
- threat
- 1.exd5!
There are these versions: 246349
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 8
- Sets
- R(k);N_GUARD::QAR1(I),XR(k)
- R(k);N_GUARD::QAR1(I)
- B(c);SBLOCK,XP(E)::B(H)
- B(m);N_GUARD::QAB1(I),XB(m)
- B(m);N_GUARD::QAB1(I)
- S(l);N_GUARD::R1(A),XP(i)
- S(l);N_GUARD,XP(G)::R1(A),XP(i)
- S(l);N_GUARD,XS(J)::R1(A),XP(i)
- Tries
- Try
- B(C);XP(i)
- Threat
- DUALS(5)
- Vars
- S(d);XP(E)::S(B)
- S(l);OGATE,XB(C)::R1(A),XS(l)
- S(l);XS(J)::S(B)
- Refutation
- B(c);XP(E)
- Try
- Actual
- P(E);XP(i)
- Threat
- QAB1(I),XP(g)
- Vars
- S(l);OGATE,XP(E)::R1(A),XS(l)
- S(l);OGATE,XP(G)::QAR1(I),XS(l)
- B(m);N_GUARD::QAB1(I),XB(m)
- R(k);SBLOCK::QAB(I),XS(l)
- B(c);SBLOCK::B(H)
- B(c);SBLOCK::QAB(I),XB(m)
- B(m);N_GUARD::QAB1(I)
- S(d);S_CUTB(c)::QAR(I),XR(k)
- S(d);SBLOCK::S(B)
- P(g);::QAB1(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).