MESON Chess Problem Database
Problem Display
PID: 273782 (8/4p3/4B3/1p4K1/1R1Pk1n1/3pp1p1/2p3p1/1nQN2N1 w - - 0 1)
Eichholz, Heinrich
Die Schwalbe, 1932
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...cxd1Q
- 2.Qc6#
- 1...cxd1S
- 2.Qc6#
- 1...cxd1B
- 2.Qc6#
- 1...cxd1R
- 2.Qc6#
- 1...d2
- 2.Qxc2#
- 1...e2
- 2.Qf4#
- 1...Sd2
- Tries
- 1.Ba2?
- 1...cxd1Q
- 2.Qc6#
- 1...cxd1S
- 2.Qc6#
- 1...cxd1B
- 2.Qc6#
- 1...cxd1R
- 2.Qc6#
- 1...d2
- 2.Qxc2#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...e2
- 2.Qf4#
- 1...e5
- 2.d5#
- 1...e6!
- 1...cxd1Q
- 1.Bb3?
- 1...cxd1Q
- 2.Qc6#
- 1...cxd1S
- 2.Qc6#
- 1...cxd1B
- 2.Qc6#
- 1...cxd1R
- 2.Qc6#
- 1...d2
- 2.Qxc2#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...e2
- 2.Qf4#
- 1...e5
- 2.d5#
- 1...e6!
- 1...cxd1Q
- 1.Bf7?
- 1...cxd1Q
- 2.Qc6#
- 1...cxd1S
- 2.Qc6#
- 1...cxd1B
- 2.Qc6#
- 1...cxd1R
- 2.Qc6#
- 1...d2
- 2.Qxc2#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...e2
- 2.Qf4#
- 1...e5
- 2.d5#
- 1...e6!
- 1...cxd1Q
- 1.Bg8?
- 1...cxd1Q
- 2.Qc6#
- 1...cxd1S
- 2.Qc6#
- 1...cxd1B
- 2.Qc6#
- 1...cxd1R
- 2.Qc6#
- 1...d2
- 2.Qxc2#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sf2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Se5
- 2.Qxe3#
- 1...Sf6
- 2.Qxe3#
- 1...Sh6
- 2.Qxe3#
- 1...e2
- 2.Qf4#
- 1...e5
- 2.d5#
- 1...e6!
- 1...cxd1Q
- 1.Ba2?
- Keys
- 1.Qb2!
- threat
- 2.d5#
- 1...d2
- 2.Qxc2#
- 1...c1Q
- 2.Qxg2#
- 1...c1R
- 2.Qxg2#
- 1...Sd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se5
- 2.dxe5#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::QAR1(A),XP(e)
- P(b);OGATE,XS(B)::QAB(A)
- P(d);OGATEB::QAB(A),XP(b)
- P(e);OGATE::QAR1(A)
- Tries
- Try
- B(G);
- Vars
- P(b);OGATE,XS(B)::QAB(A)
- P(d);OGATEB::QAB(A),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::QAR1(A),XP(e)
- P(e);OGATE::QAR1(A)
- P(j);SBLOCK::R(D)+P(E)
- Refutation
- P(j);
- Try
- B(G);
- Vars
- P(b);OGATE,XS(B)::QAB(A)
- P(d);OGATEB::QAB(A),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::QAR1(A),XP(e)
- P(e);OGATE::QAR1(A)
- P(j);SBLOCK::R(D)+P(E)
- Refutation
- P(j);
- Try
- B(G);
- Vars
- P(b);OGATE,XS(B)::QAB(A)
- P(d);OGATEB::QAB(A),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::QAR1(A),XP(e)
- P(e);OGATE::QAR1(A)
- P(j);SBLOCK::R(D)+P(E)
- Refutation
- P(j);
- Try
- B(G);
- Vars
- P(b);OGATE,XS(B)::QAB(A)
- P(d);OGATEB::QAB(A),XP(b)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);N_GUARD::QAR1(A),XP(e)
- P(e);OGATE::QAR1(A)
- P(j);SBLOCK::R(D)+P(E)
- Refutation
- P(j);
- Try
- Actual
- Q(A);
- Threat
- R(D)+P(E)
- Vars
- P(d);OGATEB::QAB(A),XP(b)
- P(b);OGATE::QAB(A),XP(c)
- S(a);N_GUARD::S(B)
- S(a);N_GUARD::S(B),XS(a)
- S(h);OGATE::R(D)+P(E),XS(h)
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).