MESON Chess Problem Database
Problem Display
PID: 138131 (2K2n1n/8/p3PP1R/bQN2k2/2R3NP/1p2p3/2r5/1B3b2 w - - 0 1)
Ellerman, Arnoldo
L'Italia Scacchistica, 1926
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sfg6
- 2.Rh5#
- 1...Shg6
- 2.Rh5#
- 1...Sfg6
- Tries
- 1.Bxc2+?
- 1...Bd3
- 2.Bxd3#
- 1...bxc2!
- 1...Bd3
- 1.Qc6?
- threat
- 2.Qf3#
- 2.Qe4#
- 2.Qd5#
- 1...Bxc4
- 2.Qf3#
- 2.Qe4#
- 1...Sxe6
- 2.Qe4#
- 2.Qd5#
- 2.Qxe6#
- 1...Be2
- 2.Qe4#
- 2.Qd5#
- 1...Bd3
- 2.Qf3#
- 2.Qd5#
- 1...Bc3
- 2.Qf3#
- 2.Qe4#
- 1...Bc7
- 2.Qe4#
- 1...Sfg6
- 2.Rh5#
- 2.Qe4#
- 1...Sd7
- 2.Qf3#
- 2.Qe4#
- 1...Shg6
- 2.Rh5#
- 2.Qe4#
- 1...Sf7
- 2.Qf3#
- 2.Qe4#
- 1...Bg2!
- threat
- 1.Qb7?
- threat
- 2.Qf3#
- 2.Qe4#
- 2.Qd5#
- 1...Bxc4
- 2.Qf3#
- 2.Qe4#
- 1...Sxe6
- 2.Qe4#
- 2.Qd5#
- 1...Be2
- 2.Qe4#
- 2.Qd5#
- 1...Bd3
- 2.Qf3#
- 2.Qd5#
- 1...Bc3
- 2.Qf3#
- 2.Qe4#
- 1...Bc7
- 2.Qe4#
- 1...Sfg6
- 2.Rh5#
- 2.Qe4#
- 1...Sd7
- 2.Qf3#
- 2.Qe4#
- 1...Shg6
- 2.Rh5#
- 2.Qe4#
- 1...Sf7
- 2.Qf3#
- 2.Qe4#
- 1...Bg2!
- threat
- 1.Qb8?
- threat
- 2.Sxe3#
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Bxc4
- 2.Sxe3#
- 1...Sxe6
- 2.Sxe3#
- 2.Qe5#
- 1...Bd2
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Bc3
- 2.Sxe3#
- 2.Rf4#
- 2.Qf4#
- 1...Sfg6
- 2.Rh5#
- 1...Sd7
- 2.Sxe3#
- 2.Rf4#
- 2.Qf4#
- 1...Shg6
- 2.Rh5#
- 1...Sf7
- 2.Sxe3#
- 2.Rf4#
- 2.Qf4#
- 1...e2
- 2.Se3#
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Bc7!
- threat
- 1.Bxc2+?
- Keys
- 1.Re4!
- threat
- 2.Sxe3#
- 1...Rxc5+
- 2.Qxc5#
- 1...Re2
- 2.Sxa6#
- 1...Rc3
- 2.Qxf1#
- 1...Bd2
- 2.Qxf1#
- 1...Sfg6
- 2.Rh5#
- 1...Shg6
- 2.Rh5#
- 1...e2
- 2.Se3#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- S(h);SBLOCK::R(I)
- S(i);SBLOCK::R(I)
- Tries
- Try
- B(A);CHECK,XR(b)
- Vars
- B(a);N_GUARD,P_SPINB(a)::B(A),XB(a)
- Refutation
- P(c);XB(A)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(e);::QAB1(E)
- Refutation
- B(a);
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- B(e);::QAB1(E)
- Refutation
- B(a);
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- B(a);XR(B)::S(C),XP(d)
- S(h);SBLOCK::R(I)
- S(i);SBLOCK::R(I)
- Refutation
- B(e);
- Try
- Actual
- R(B);N_PINR(b),P_SPINS(F)
- Threat
- S(C),XP(d)
- Vars
- R(b);CHECK,OGATE,P_SPINR(b),XS(F)::QAR(E),XR(b)
- R(b);N_PINS(F)::QAR(E)+S(F),XP(g)
- R(b);N_GUARD::QAR(E),XB(a)
- B(e);S_CUTR(b)::QAR(E),XB(a)
- S(h);SBLOCK::R(I)
- S(i);SBLOCK::R(I)
- P(d);::S(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).