MESON Chess Problem Database
Problem Display
PID: 53059 (3R4/2pn4/2p3N1/2P4p/1PkN1R1P/P2p2p1/2pP1nB1/2K2QB1 w - - 0 1)
Lechtenfeld, Theodor Gottfried
Schach-Echo, 1933
#2
13 + 9
SOLUTION
- SOUND
- Sets
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Sxc5
- Tries
- 1.Bxf2?
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...gxf2!
- 1...Sxc5
- 1.Rxf2?
- 1...Kxd4
- 2.Rf4#
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...gxf2!
- 1...Kxd4
- 1.Re4?
- 1...Sxe4
- 2.Qf7#
- 1...Sxc5
- 2.Se5#
- 1...Sd1
- 2.Qf7#
- 1...Sh1
- 2.Qf7#
- 1...Sh3
- 2.Qf7#
- 1...Sg4
- 2.Qf7#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Kd5!
- 1...Sxe4
- 1.Rg4?
- 1...Sxg4
- 2.Qf7#
- 1...Sxc5
- 2.Se5#
- 1...Se4
- 2.Qf7#
- 1...Sd1
- 2.Qf7#
- 1...Sh1
- 2.Qf7#
- 1...Sh3
- 2.Qf7#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...hxg4!
- 1...Sxg4
- 1.Qxd3+?
- 1...Kxd3
- 2.Bf1#
- 1...Sxd3+!
- 1...Kxd3
- 1.Qe1?
- threat
- 2.Qe6#
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...Se4!
- threat
- 1.Qxf2?
- 1...Sxc5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Sf8
- 2.Se5#
- 1...gxf2!
- 1...Sxc5
- 1.Bxf2?
- Keys
- 1.Rff8!
- 1...Kxd4
- 2.Rf4#
- 1...Sxc5
- 2.Se5#
- 1...Sxf8
- 2.Se5#
- 1...Sd1
- 2.Qf7#
- 1...Sh1
- 2.Qf7#
- 1...Sh3
- 2.Qf7#
- 1...Se4
- 2.Qf7#
- 1...Sg4
- 2.Qf7#
- 1...Se5
- 2.Sxe5#
- 1...Sb6
- 2.Se5#
- 1...Sf6
- 2.Se5#
- 1...Sb8
- 2.Se5#
- 1...Kxd4
- 1.Rff8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Tries
- Try
- B(C);XS(b)
- Vars
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- P(d);XB(C)
- Try
- R(I);XS(b)
- Vars
- K(e);N_SPINP(c),OGATEB,P-FLIGHT,P_SPINS(i),XS(H)::B(C)+R(I),DCHECK
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- P(d);XR(I)
- Try
- R(I);
- Vars
- S(b);OGATE,XR(I)::QAB(B)
- S(i);N_GUARD,XP(K)::S(L)
- S(b);OGATE::QAB(B)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- K(e);N_SPINP(c),P_SPINS(i),S_FLIGHT
- Try
- R(I);
- Vars
- S(b);OGATE,XR(I)::QAB(B)
- S(i);N_GUARD,XP(K)::S(L)
- S(b);OGATE::QAB(B)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- P(f);XR(I)
- Try
- Q(B);CHECK,XP(c)
- Vars
- K(e);S_FLIGHT,XQ(B)::B(E)
- Refutation
- S(b);CHECK,XQ(B)
- Try
- Q(B);N_PINP(c)
- Threat
- QAB(B)
- Vars
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- S(b);
- Try
- Q(B);N_PINP(c),XS(b)
- Vars
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
- Refutation
- P(d);XQ(B)
- Try
- Actual
- R(I);
- Vars
- K(e);N_SPINP(c),OGATEB,P-FLIGHT,P_SPINS(b),XS(H)::R(I)
- S(i);N_GUARD,XP(K)::S(L)
- S(i);N_GUARD,XR(I)::S(L)
- S(b);OGATE::QAB(B)
- S(i);N_GUARD::S(L),XS(i)
- S(i);N_GUARD::S(L)
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).