MESON Chess Problem Database
Problem Display
PID: 237752 (6B1/3Qp3/4n1r1/1N2kpP1/2pp3r/3Pn3/4R3/1K2NR2 w - - 0 1)
Ellerman, Arnoldo
Arbejder-Skak, 1954
#2
9 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxg5
- 2.Qxe6#
- 1...Rg7
- 2.Qxe6#
- 1...Sf4
- 2.Sf3#
- 2.Qxd4#
- 1...Sc5
- 2.Rxf5#
- 2.Qxf5#
- 2.Qd5#
- 1...Sxg5
- 2.Rxf5#
- 2.Qxf5#
- 1...Sc7
- 2.Rxf5#
- 2.Qxf5#
- 1...Sg7
- 2.Qd5#
- 1...Sd8
- 2.Rxf5#
- 2.Qxf5#
- 2.Qd5#
- 1...Sf8
- 2.Rxf5#
- 2.Qxf5#
- 2.Qd5#
- 1...Rxg5
- Tries
- 1.Sc7?
- threat
- 2.Qd5#
- 1...Rxg5
- 2.Qxe6#
- 1...Sxg5
- 2.Rxf5#
- 1...Sxc7
- 2.Rxf5#
- 1...Sf4
- 2.Sf3#
- 1...Re4!
- threat
- 1.Sc7?
- Keys
- 1.dxc4!
- threat
- 2.Qd5#
- 1...Ke4
- 2.Qd5#
- 1...Rxg5
- 2.Qxe6#
- 1...Sxg5
- 2.Qxf5#
- 1...Re4
- 2.Sd3#
- 1...Sf4
- 2.Qxd4#
- 1...Sc7
- 2.Qxf5#
- threat
- 1.dxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- R(h);N_GUARD,XP(G)::QAR1(H),XS(g)
- R(h);N_GUARD::QAR1(H),XS(g)
- S(g);::QAR1(H)
- Tries
- Try
- S(F);
- Threat
- QAR1(H)
- Vars
- R(h);N_GUARD,XP(G)::QAR1(H),XS(g)
- S(g);XP(G)::R1(C),XP(f)
- S(g);XS(F)::R1(C),XP(f)
- S(g);SBLOCK::S(B)
- Refutation
- R(d);N_SPINS(a)
- Try
- Actual
- P(E);XP(b)
- Threat
- QAR1(H)
- Vars
- K(e);P-FLIGHT::QAB1(H)
- R(h);N_GUARD,XP(G)::QAR1(H),XS(g)
- S(g);OGATE,XP(G)::QAR1(H),XP(f)
- R(d);N_SPINS(a),SBLOCK::S(B)
- S(g);N_GUARD,S_CUTR(d)::QAB1(H),XP(c)
- S(g);OGATE::QAR1(H),XP(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).