MESON Chess Problem Database
Problem Display
PID: 123343 (6B1/8/3N2N1/1n3r2/4r3/3k1p2/1Qb1pP2/B1K1n3 w - - 0 1)
Meyer, Heinrich Friedrich Ludwig
Schachaufgaben, 1880
#2
7 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Re3
- 2.Bc4#
- 1...Rc4
- 2.Bxc4#
- 1...Ree5
- 2.Bc4#
- 1...Re7
- 2.Bc4#
- 1...Re8
- 2.Bc4#
- 1...Bb1
- 2.Qd2#
- 1...Bd1
- 2.Qd2#
- 1...Bb3
- 2.Qd2#
- 1...Ba4
- 2.Qd2#
- 1...Sg2
- 2.Qxc2#
- 1...Sa3
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sd4
- 2.Bc4#
- 2.Qc3#
- 1...Sxd6
- 2.Qc3#
- 1...Sa7
- 2.Qc3#
- 1...Sc7
- 2.Qc3#
- 1...Re3
- Tries
- 1.Se5+?
- 1...Rexe5
- 2.Bc4#
- 1...Rfxe5!
- 1...Rexe5
- 1.Qd4+?
- 1...Sxd4
- 2.Bc4#
- 1...Rxd4!
- 1...Sxd4
- 1.Qb3+?
- 1...Sc3
- 2.Qxc3#
- 1...Bxb3!
- 1...Sc3
- 1.Qb4?
- threat
- 2.Qd2#
- 2.Qxe4#
- 1...Sxd6
- 2.Qd2#
- 2.Qc3#
- 1...Re3
- 2.Bc4#
- 2.Qd2#
- 2.Qc4#
- 1...Rc4
- 2.Bxc4#
- 2.Qd2#
- 2.Qxc4#
- 1...Rd4
- 2.Qd2#
- 1...Ref4
- 2.Qd2#
- 1...Rg4
- 2.Qd2#
- 1...Rh4
- 2.Qd2#
- 1...Ree5
- 2.Bc4#
- 2.Qd2#
- 2.Qc4#
- 1...Re6
- 2.Qd2#
- 2.Qc4#
- 1...Re7
- 2.Bc4#
- 2.Qd2#
- 2.Qc4#
- 1...Re8
- 2.Bc4#
- 2.Qd2#
- 2.Qc4#
- 1...Rff4
- 2.Qd2#
- 1...Rfe5
- 2.Qd2#
- 1...Sc3
- 2.Qxc3#
- 1...Sd4
- 2.Bc4#
- 2.Qd2#
- 2.Qc3#
- 2.Qc4#
- 1...Rxb4!
- threat
- 1.Qxb5+?
- 1...Rc4
- 2.Bxc4#
- 2.Qxc4#
- 1...Rxb5!
- 1...Rc4
- 1.Se5+?
- Keys
- 1.Bh7!
- 1...Sxd6
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Ra4
- 2.Se5#
- 1...Re3
- 2.Sf4#
- 1...Rb4
- 2.Se5#
- 1...Rc4
- 2.Se5#
- 1...Rd4
- 2.Se5#
- 1...Ref4
- 2.Sxf4#
- 2.Se5#
- 1...Rg4
- 2.Se5#
- 1...Rh4
- 2.Se5#
- 1...Ree5
- 2.Sf4#
- 2.Sxe5#
- 1...Re6
- 2.Sf4#
- 1...Re7
- 2.Sf4#
- 1...Re8
- 2.Sf4#
- 1...Rff4
- 2.Sxf4#
- 2.Se5#
- 1...Rc5
- 2.Sf4#
- 1...Rd5
- 2.Sf4#
- 1...Rfe5
- 2.Sf4#
- 2.Sxe5#
- 1...Rg5
- 2.Sf4#
- 1...Rh5
- 2.Sf4#
- 1...Rf6
- 2.Se5#
- 1...Rf7
- 2.Se5#
- 1...Rf8
- 2.Se5#
- 1...Bb1
- 2.Qd2#
- 1...Bd1
- 2.Qd2#
- 1...Bb3
- 2.Qd2#
- 1...Ba4
- 2.Qd2#
- 1...Sg2
- 2.Qxc2#
- 1...Sa3
- 2.Qc3#
- 1...Sd4
- 2.Qc3#
- 1...Sa7
- 2.Qc3#
- 1...Sc7
- 2.Qc3#
- 1...Sxd6
- 1.Bh7!
This is a version of 1969
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 14
- REMOVED MATES = 1
- Sets
- R(f);N_GUARD::B(G)
- R(f);N_GUARD::B(G),XR(f)
- B(b);OGATE::QAR1(C)
- S(a);N_GUARD::QAB1(C),XB(b)
- S(g);N_GUARD::QAR1(C)
- S(g);N_GUARD::QAR1(C),XS(g)
- S(g);N_GUARD,XS(E)::QAR1(C)
- Tries
- Try
- S(F);CHECK
- Vars
- R(f);XS(F)::B(G)
- Refutation
- R(h);XS(F)
- Try
- Q(C);CHECK
- Vars
- S(g);XQ(C)::B(G)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);CHECK
- Vars
- S(g);N_GUARD,P_SPINS(g)::QAR1(C),XS(g)
- Refutation
- B(b);XQ(C)
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- R(f);::QAR1(C)
- R(h);::QAR1(C)
- S(g);N_GUARD::QAR1(C),XS(g)
- Refutation
- R(f);XQ(C)
- Try
- Q(C);CHECK,XS(g)
- Refutation
- R(h);XQ(C)
- Try
- Actual
- B(G);
- Vars
- S(g);N_GUARD,XS(E)::QAR1(C)
- S(g);N_GUARD::QAR1(C),XS(g)
- R(f);N_GUARD,S_CUTR(h)::S(F)
- R(h);N_GUARD,S_CUTR(f)::S(F)
- B(b);OGATE::QAR1(C)
- S(a);N_GUARD::QAB1(C),XB(b)
- S(g);N_GUARD::QAR1(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).