MESON Chess Problem Database
Problem Display
PID: 137658 (b7/8/8/4pQ2/1N2nnpN/2PPk3/8/K2BB3 w - - 0 1)
Ellerman, Arnoldo
Ajedrez Argentino, 1952
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Sc2#
- 1...Sf2
- 2.Sc2#
- 1...Sxc3
- 2.Sc2#
- 1...Sg3
- 2.Sc2#
- 1...Sc5
- 2.Sc2#
- 1...Sg5
- 2.Sc2#
- 1...Sd6
- 2.Sc2#
- 1...Sf6
- 2.Sc2#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sxd3
- 2.Sc2#
- 2.Sg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 2.Qxe4#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Sd2
- Tries
- 1.Qxg4?
- threat
- 2.Sf5#
- 2.Qf3#
- 1...Sxc3
- 2.Sf5#
- 2.Qg1#
- 1...Sd2
- 2.Sf5#
- 2.Qg1#
- 1...Sf2
- 2.Sf5#
- 1...Sc5
- 2.Sf5#
- 2.Qg1#
- 1...Sg5
- 2.Sf5#
- 2.Qg1#
- 1...Sd6
- 2.Qg1#
- 1...Sf6
- 2.Sf5#
- 2.Qg1#
- 1...Sg3!
- threat
- 1.Qg6?
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sg2#
- 1...Sxg6
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 2.Qxe4#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg3
- 2.Sc2#
- 2.Qb6#
- 1...Sd6
- 2.Sc2#
- 1...Se2!
- threat
- 1.Qd7?
- threat
- 2.Sc2#
- 2.Sf5#
- 1...Sxd3
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Bd5
- 2.Sf5#
- 1...Sg3
- 2.Sc2#
- 2.Qa7#
- 1...Sd6
- 2.Qa7#
- 1...Se2!
- threat
- 1.Qh7?
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 2.Qxe4#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Sg3
- 2.Sc2#
- 2.Qa7#
- 1...Sd6
- 2.Sc2#
- 2.Qa7#
- 1...Se2!
- threat
- 1.Qc8?
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Sg3
- 2.Qc5#
- 1...Sd6
- 2.Qc5#
- 1...Se2!
- threat
- 1.Qxf4+?
- 1...exf4
- 2.Sg2#
- 2.Sf5#
- 1...Kxf4!
- 1...exf4
- 1.Qxe5?
- threat
- 2.Sf5#
- 2.Qd4#
- 1...Sxd3
- 2.Sc2#
- 2.Sg2#
- 2.Sf5#
- 1...Sg2
- 2.Sxg2#
- 2.Sf5#
- 1...Sh3
- 2.Sg2#
- 2.Sf5#
- 1...Sd5
- 2.Sg2#
- 2.Sf5#
- 2.Qxe4#
- 1...Sh5
- 2.Sg2#
- 2.Sf5#
- 1...Se6
- 2.Sg2#
- 2.Sf5#
- 1...Sg6
- 2.Sg2#
- 2.Sf5#
- 1...Se2!
- threat
- 1.Qf6?
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sc2#
- 2.Sg2#
- 1...Sg3
- 2.Qb6#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Sd6!
- threat
- 1.Qf8?
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sc2#
- 2.Sg2#
- 1...Sg3
- 2.Qc5#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- 1...Sd6!
- threat
- 1.Qxg4?
- Keys
- 1.Qf7!
- threat
- 2.Sf5#
- 1...Sxd3
- 2.Sc2#
- 2.Sg2#
- 1...Sg3
- 2.Qa7#
- 1...Sd6
- 2.Qa7#
- 1...Se2
- 2.Sg2#
- 1...Sg2
- 2.Sxg2#
- 1...Sh3
- 2.Sg2#
- 1...Sd5
- 2.Sg2#
- 1...Sh5
- 2.Sg2#
- 1...Se6
- 2.Sg2#
- 1...Sg6
- 2.Sg2#
- threat
- 1.Qf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- S(b);::S(F)
- S(b);XP(D)::S(F)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- Tries
- Try
- Q(H);XP(d)
- Threat
- DUALS(2)
- Vars
- S(b);::S(G)
- S(b);N_GUARD::QAB(H)
- Refutation
- S(b);
- Try
- Q(H);
- Threat
- S(G)
- Vars
- S(c);N_GUARD,XP(E)::S(G)
- S(c);N_GUARD,XQ(H)::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);N_GUARD::S(G)
- S(b);::S(F)
- Refutation
- S(c);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XP(E)::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);N_GUARD::S(G)
- B(f);::S(G)
- S(b);N_GUARD::QAB(H)
- Refutation
- S(c);
- Try
- Q(H);
- Threat
- S(G)
- Vars
- S(c);N_GUARD,XP(E)::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);N_GUARD::S(G)
- Refutation
- S(c);
- Try
- Q(H);
- Threat
- S(G)
- Vars
- S(c);N_GUARD,XP(E)::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);N_GUARD::S(G)
- S(b);N_GUARD::QAB(H)
- Refutation
- S(c);
- Try
- Q(H);CHECK,XS(c)
- Refutation
- K(a);S_FLIGHT,XQ(H)
- Try
- Q(H);P_PINS(b),XP(e)
- Threat
- DUALS(2)
- Refutation
- S(c);
- Try
- Q(H);
- Threat
- S(G)
- Vars
- S(b);N_GUARD::QAB(H)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- Refutation
- S(b);
- Try
- Q(H);
- Threat
- S(G)
- Vars
- S(b);N_GUARD::QAB(H)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- Refutation
- S(b);
- Try
- Actual
- Q(H);
- Threat
- S(G)
- Vars
- S(b);N_GUARD::QAB(H)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
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).