MESON Chess Problem Database
Problem Display
PID: 109943 (3r1r2/2R1R3/3k1p2/6N1/1pP2p2/b2Kn1n1/1B6/4Q3 w - - 0 1)
Zepler, Erich Ernest
3rd Prize, Chemnitzer Wochenschach (Allgemeine Zeitung Chemnitz), 1926
#2
7 + 9
| 881 | The Australasian Chess Review | 1929 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd7
- 2.Rexd7#
- 1...Ra8
- 2.Red7#
- 1...Rb8
- 2.Red7#
- 1...Rc8
- 2.Red7#
- 1...Rde8
- 2.Red7#
- 1...Rf7
- 2.Sxf7#
- 1...Rfe8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Bxb2
- 2.Qxb4#
- 1...Sd1
- 2.Qe6#
- 1...Sef1
- 2.Qe6#
- 1...Sc2
- 2.Qe6#
- 1...Sg2
- 2.Qe6#
- 1...Sxc4
- 2.Qe6#
- 1...Sg4
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 2.c5#
- 1...Sef5
- 2.Qe6#
- 1...Sgf1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Se2
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sgf5
- 2.Se4#
- 1...Sh5
- 2.Se4#
- 1...b3
- 2.Bxa3#
- 1...f3
- 2.Qxg3#
- 1...fxg5
- 2.Be5#
- 1...f5
- 2.Be5#
- 1...Rd7
- Tries
- 1.Ba1?
- 1...Sxc4
- 2.Qe6#
- 1...fxg5
- 2.Be5#
- 1...Rd7
- 2.Rexd7#
- 1...Ra8
- 2.Red7#
- 1...Rb8
- 2.Red7#
- 1...Rc8
- 2.Red7#
- 1...Rde8
- 2.Red7#
- 1...Rf7
- 2.Sxf7#
- 1...Rfe8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Bc1
- 2.Qxb4#
- 1...Bb2
- 2.Qxb4#
- 1...Sd1
- 2.Qe6#
- 1...Sef1
- 2.Qe6#
- 1...Sc2
- 2.Qe6#
- 1...Sg2
- 2.Qe6#
- 1...Sg4
- 2.Qe6#
- 1...Sd5
- 2.Qe6#
- 2.c5#
- 1...Sef5
- 2.Qe6#
- 1...Sgf1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Se2
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sgf5
- 2.Se4#
- 1...Sh5
- 2.Se4#
- 1...f3
- 2.Qxg3#
- 1...f5
- 2.Be5#
- 1...b3!
- 1...Sxc4
- 1.Bd4?
- threat
- 2.Bc5#
- 1...Sxc4
- 2.Qe6#
- 1...Rd7
- 2.Rexd7#
- 1...Se4
- 2.Sxe4#
- 1...b3!
- threat
- 1.Bxf6?
- threat
- 2.Be5#
- 1...Sxc4
- 2.Qe6#
- 1...Rd7
- 2.Rexd7#
- 1...Bb2
- 2.Qxb4#
- 1...Sg4
- 2.Qe6#
- 1...Rxf6!
- threat
- 1.Qf2?
- threat
- 2.Qxf4#
- 1...Sxc4
- 2.Qd4#
- 2.Qc5#
- 1...fxg5
- 2.Be5#
- 1...Rd7
- 2.Rexd7#
- 1...Sg2
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sd5
- 2.Qc5#
- 2.c5#
- 1...Se2
- 2.Se4#
- 1...Sh5
- 2.Se4#
- 1...f3
- 2.Qxg3#
- 1...Bxb2!
- threat
- 1.Qxg3?
- threat
- 2.Se4#
- 2.Qxf4#
- 1...Bxb2
- 2.Se4#
- 1...fxg3
- 2.Se4#
- 1...fxg5
- 2.Be5#
- 1...Rd7
- 2.Rexd7#
- 1...Sg2
- 2.Se4#
- 1...Sg4
- 2.Se4#
- 1...Sd5
- 2.Se4#
- 2.c5#
- 1...f5
- 2.Be5#
- 2.Qxf4#
- 1...Sxc4!
- threat
- 1.Qg1?
- 1...Sxc4
- 2.Qd4#
- 2.Qc5#
- 1...fxg5
- 2.Be5#
- 1...Rd7
- 2.Rexd7#
- 1...Ra8
- 2.Red7#
- 1...Rb8
- 2.Red7#
- 1...Rc8
- 2.Red7#
- 1...Rde8
- 2.Red7#
- 1...Rf7
- 2.Sxf7#
- 1...Rfe8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sd1
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sef1
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sc2
- 2.Qc5#
- 2.Qb6#
- 1...Sg2
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 1...Sd5
- 2.Qc5#
- 2.c5#
- 1...Sef5
- 2.Qc5#
- 2.Qb6#
- 1...Sgf1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Se2
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sgf5
- 2.Se4#
- 1...Sh5
- 2.Se4#
- 1...b3
- 2.Bxa3#
- 1...f3
- 2.Qxg3#
- 1...f5
- 2.Be5#
- 1...Bxb2!
- 1...Sxc4
- 1.Qxe3?
- threat
- 2.Qd4#
- 2.Qxf4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...Bxb2
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...fxg5
- 2.Be5#
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe5#
- 2.Qe6#
- 1...Rd7
- 2.Rexd7#
- 2.Qc5#
- 1...Rb8
- 2.Red7#
- 2.Qd4#
- 2.Qxf4#
- 2.Qc5#
- 2.Qe6#
- 1...Se2
- 2.Se4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...Se4
- 2.Sxe4#
- 2.Qd4#
- 2.Qxf4#
- 2.Qb6#
- 1...Sf5
- 2.Se4#
- 2.Qxf4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...Sh5
- 2.Se4#
- 2.Qd4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...b3
- 2.Bxa3#
- 2.Qd4#
- 2.Qxf4#
- 2.Qb6#
- 2.Qe6#
- 1...f3
- 2.Qd4#
- 2.Qf4#
- 2.Qc5#
- 2.Qb6#
- 2.Qe6#
- 1...fxe3!
- threat
- 1.Ba1?
- Keys
- 1.Qd2!
- 1...Bxb2
- 2.Qxb4#
- 1...Sxc4
- 2.Kxc4#
- 1...fxg5
- 2.Be5#
- 1...Rd7
- 2.Rexd7#
- 1...Ra8
- 2.Red7#
- 1...Rb8
- 2.Red7#
- 1...Rc8
- 2.Red7#
- 1...Rde8
- 2.Red7#
- 1...Rf7
- 2.Sxf7#
- 1...Rfe8
- 2.Sf7#
- 1...Rg8
- 2.Sf7#
- 1...Rh8
- 2.Sf7#
- 1...Sd1
- 2.Kc2#
- 2.Qxf4#
- 1...Sef1
- 2.Qxf4#
- 1...Sc2
- 2.Kxc2#
- 2.Qxf4#
- 1...Sg2
- 2.Kc2#
- 1...Sg4
- 2.Kc2#
- 1...Sd5
- 2.c5#
- 1...Sef5
- 2.Qxf4#
- 1...Sgf1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Se2
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sgf5
- 2.Se4#
- 1...Sh5
- 2.Se4#
- 1...b3
- 2.Bxa3#
- 1...f3
- 2.Kxe3#
- 1...f5
- 2.Be5#
- 1...Bxb2
- 1.Qd2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- R(h);N_GUARD::R1(G),XR(h)
- R(h);N_GUARD::R1(G)
- R(i);N_GUARD::S(E),XR(i)
- R(i);N_GUARD::S(E)
- B(a);N_GUARD,XB(B)::QAB(A),XP(d)
- S(b);OGATE::QAR1(A)
- S(b);OGATE,XP(D)::QAR1(A)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- P(d);OGATEB::B(B),XB(a)
- P(e);OGATEB::QAB(A),XS(c)
- P(g);N_GUARD,XS(E)::B(B)
- P(g);N_GUARD::B(B)
- Tries
- Try
- B(B);
- Vars
- S(b);OGATE,XP(D)::QAR1(A)
- P(g);N_GUARD,XS(E)::B(B)
- R(h);N_GUARD::R1(G),XR(h)
- R(h);N_GUARD::R1(G)
- R(i);N_GUARD::S(E),XR(i)
- R(i);N_GUARD::S(E)
- B(a);N_GUARD::QAB(A),XP(d)
- S(b);OGATE::QAR1(A)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- P(e);OGATEB::QAB(A),XS(c)
- P(g);N_GUARD::B(B)
- Refutation
- P(d);
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(b);OGATE,XP(D)::QAR1(A)
- R(h);N_GUARD::R1(G),XR(h)
- S(c);N_GUARD::S(E),XS(c)
- Refutation
- P(d);
- Try
- B(B);XP(g)
- Threat
- B(B)
- Vars
- S(b);OGATE,XP(D)::QAR1(A)
- R(h);N_GUARD::R1(G),XR(h)
- B(a);N_GUARD::QAB(A),XP(d)
- S(b);OGATE::QAR1(A)
- Refutation
- R(i);XB(B)
- Try
- Q(A);
- Threat
- QAB(A),XP(e)
- Vars
- P(g);N_GUARD,XS(E)::B(B)
- R(h);N_GUARD::R1(G),XR(h)
- S(c);N_GUARD::S(E)
- P(e);OGATEB::QAB(A),XS(c)
- Refutation
- B(a);XB(B)
- Try
- Q(A);P_PINP(e),XS(c)
- Threat
- DUALS(2)
- Vars
- B(a);XB(B)::S(E)
- P(e);N_SPINP(e),XQ(A)::S(E)
- P(g);N_GUARD,XS(E)::B(B)
- R(h);N_GUARD::R1(G),XR(h)
- S(b);::S(E)
- Refutation
- S(b);XP(D)
- Try
- Q(A);
- Vars
- P(g);N_GUARD,XS(E)::B(B)
- R(h);N_GUARD::R1(G),XR(h)
- R(h);N_GUARD::R1(G)
- R(i);N_GUARD::S(E),XR(i)
- R(i);N_GUARD::S(E)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- P(d);OGATEB::B(B),XB(a)
- P(e);OGATEB::QAB(A),XS(c)
- P(g);N_GUARD::B(B)
- Refutation
- B(a);XB(B)
- Try
- Q(A);XS(b)
- Threat
- DUALS(5)
- Refutation
- P(e);XQ(A)
- Try
- Actual
- Q(A);
- Vars
- B(a);N_GUARD,XB(B)::QAB(A),XP(d)
- S(b);XP(D)::QAR(A)+K(C),XS(b)
- P(g);N_GUARD,XS(E)::B(B)
- R(h);N_GUARD::R1(G),XR(h)
- R(h);N_GUARD::R1(G)
- R(i);N_GUARD::S(E),XR(i)
- R(i);N_GUARD::S(E)
- S(b);OGATE::QAB(A),XP(e)
- S(b);::QAR(A)+K(C)
- S(b);SBLOCK::P(D)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- P(d);OGATEB::B(B),XB(a)
- P(e);::QAR(A)+K(C),XS(b)
- P(g);N_GUARD::B(B)
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).