MESON Chess Problem Database
Problem Display
PID: 216212 (1n1N4/br6/3QR3/3p3q/1P1kN2r/1P5b/1KP2Pp1/5nB1 w - - 0 1)
Ehrenstein, Moritz
Sammlung Leichterer Schachaufgaben 2 (Dufresne), 1882
#2
10 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Qe5#
- 1...Qe2
- 2.Qe5#
- 1...Qf3
- 2.Qe5#
- 1...Qg4
- 2.Qe5#
- 1...Qg6
- 2.Qe5#
- 1...Qf7
- 2.Qe5#
- 1...Qe8
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...Qh6
- 2.Qe5#
- 1...Qh7
- 2.Qe5#
- 1...Rxb4
- 2.Qxb4#
- 1...Rb6
- 2.Qc5#
- 1...Bf5
- 2.Qe5#
- 1...Bc5
- 2.Qxc5#
- 1...Sd2
- 2.f3#
- 2.f4#
- 1...Sh2
- 2.f3#
- 2.f4#
- 1...Se3
- 2.fxe3#
- 1...Sg3
- 2.fxg3#
- 2.f3#
- 2.f4#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Qd1
- Tries
- 1.Sc5?
- threat
- 2.c3#
- 1...Bxc5
- 2.Qxc5#
- 1...Qf3
- 2.Qe5#
- 1...Qe2!
- threat
- 1.Sc5?
- Keys
- 1.Sc3!
- 1...Rxb4
- 2.Qxb4#
- 1...Bxe6
- 2.Sxe6#
- 1...Qd1
- 2.Qe5#
- 2.Qxd5#
- 1...Qe2
- 2.Sxe2#
- 2.Qxd5#
- 1...Qf3
- 2.Qe5#
- 1...Qg4
- 2.Qe5#
- 2.Qxd5#
- 1...Qg6
- 2.Se2#
- 2.Qe5#
- 2.Qxd5#
- 1...Qf7
- 2.Se2#
- 2.Qe5#
- 2.Qxd5#
- 1...Qe8
- 2.Se2#
- 2.Qe5#
- 2.Qxd5#
- 1...Qe5
- 2.Qxe5#
- 1...Qf5
- 2.Se2#
- 1...Qg5
- 2.Se2#
- 1...Qh6
- 2.Se2#
- 2.Qe5#
- 2.Qxd5#
- 1...Qh7
- 2.Se2#
- 2.Qe5#
- 2.Qxd5#
- 1...Qh8
- 2.Se2#
- 2.Qxd5#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Qxf4#
- 1...Rg4
- 2.Se2#
- 1...Rb5
- 2.Sxb5#
- 1...Rb6
- 2.Qc5#
- 1...Rc7
- 2.Sb5#
- 1...Rd7
- 2.Sb5#
- 1...Re7
- 2.Sb5#
- 1...Rf7
- 2.Sb5#
- 1...Rg7
- 2.Sb5#
- 1...Rh7
- 2.Sb5#
- 1...Bg4
- 2.Re4#
- 2.Qf4#
- 1...Bf5
- 2.Qe5#
- 2.Qxd5#
- 1...Bc5
- 2.Qxc5#
- 1...Bb6
- 2.Sb5#
- 1...Sd2
- 2.f3#
- 2.f4#
- 1...Sh2
- 2.f3#
- 2.f4#
- 1...Se3
- 2.fxe3#
- 1...Sg3
- 2.fxg3#
- 2.f3#
- 2.f4#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Rxb4
- 1.Sc3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 9
- Sets
- Q(g);N_GUARD::QAB1(H)
- Q(g);N_GUARD,P_PINP(C)::QAB1(H)
- Q(g);N_GUARD::QAB1(H),XQ(g)
- R(i);OGATE,P_PINP(E),XP(F)::QAR2(H),XR(i)
- R(i);S_CUTB(h)::QAB1(H)
- B(c);S_CUTQ(g)::QAB1(H)
- B(h);N_GUARD::QAB1(H),XB(h)
- S(a);OGATE::P(D),XS(a)
- S(j);N_GUARD::S(J)
- S(j);N_GUARD::S(J),XS(j)
- Tries
- Try
- S(G);
- Threat
- P(C)
- Vars
- B(h);OGATE,XS(G)::QAB1(H),XB(h)
- Q(g);N_GUARD::QAB1(H)
- Refutation
- Q(g);P_PINP(C)
- Try
- Actual
- S(G);
- Vars
- R(i);OGATE,P_PINP(E),XP(F)::QAR2(H),XR(i)
- B(c);XR(I)::S(J),XB(c)
- Q(g);N_GUARD::QAB1(H)
- Q(g);N_GUARD::QAB1(H),XQ(g)
- Q(g);N_GUARD::S(G)
- R(e);N_GUARD::R1(I),XR(e)
- R(e);N_GUARD::QAR2(H),XR(e)
- R(e);S_CUTQ(g)::S(G)
- R(i);N_GUARD::S(G),XR(i)
- R(i);S_CUTB(h)::QAB1(H)
- R(i);N_GUARD::S(G)
- B(h);N_GUARD::QAB1(H),XB(h)
- B(h);S_CUTR(i)::S(G)
- S(a);OGATE::P(D),XS(a)
- S(j);N_GUARD::S(J)
- S(j);N_GUARD::S(J),XS(j)
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).