MESON Chess Problem Database
Problem Display
PID: 202273 (2b1N3/1prp4/1P2pp2/1Qpkpn2/4R1R1/1p3pP1/nB3K2/3N4 w - - 0 1)
Ullrich, Erich
2nd Prize, Sachsische Schachbund, 1923
#2
9 + 13
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sxg3
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...Rc6
- Tries
- 1.Ke1?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...f2+!
- 1...Sxg3
- 1.Kg1?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...f2+!
- 1...Sxg3
- 1.Ba1?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...b2!
- 1...Sxg3
- 1.Bc1?
- 1...Sxc1
- 2.Sc3#
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...b2!
- 1...Sxc1
- 1.Ba3?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...b2!
- 1...Sxg3
- 1.Bxe5?
- threat
- 2.Sxf6#
- 2.Sxc7#
- 1...Rc6
- 2.Sxf6#
- 2.Qc4#
- 1...fxe5!
- threat
- 1.Re1?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...e4!
- 1...Sxg3
- 1.Ra4?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...e4!
- 1...Sxg3
- 1.Rb4?
- 1...Sxb4
- 2.Sc3#
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...e4!
- 1...Sxb4
- 1.Rd4+?
- 1...Sxd4
- 2.Se3#
- 1...exd4!
- 1...Sxd4
- 1.Rgf4?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...exf4!
- 1...Sxg3
- 1.Rh4?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...Sxh4!
- 1...Sxg3
- 1.Qa4?
- 1...Sxg3
- 2.Se3#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 2.Sxc7#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 2.Sxc7#
- 1...c4!
- 1...Sxg3
- 1.bxc7?
- 1...Sxg3
- 2.Se3#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Sxe3#
- 1...Sd4
- 2.Se3#
- 1...Sh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 2.Sxf6#
- 1...Sh6
- 2.Se3#
- 1...Se7
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...d6
- 2.Sxf6#
- 1...b6!
- 1...Sxg3
- 1.Ke1?
- Keys
- 1.Rg5!
- 1...Kxe4
- 2.Sxf6#
- 1...Sxg3
- 2.Rd4#
- 1...fxg5
- 2.Rxe5#
- 1...Rc6
- 2.Qc4#
- 1...Sc1
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sb4
- 2.Sc3#
- 1...Se3
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sh4
- 2.Rd4#
- 1...Sd6
- 2.Sxf6#
- 2.Rd4#
- 1...Sh6
- 2.Rd4#
- 1...Se7
- 2.Rd4#
- 1...Sg7
- 2.Rd4#
- 1...d6
- 2.Sxf6#
- 1...Kxe4
- 1.Rg5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD,XP(D)::S(A)
- S(g);N_GUARD::S(A)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(c);CHECK
- Try
- K(C);S_FLIGHT
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(c);CHECK
- Try
- B(B);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(a);N_GUARD,XB(B)::S(A)
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A),XS(a)
- S(a);N_GUARD::S(A)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(b);
- Try
- B(B);XP(f)
- Threat
- DUALS(2)
- Refutation
- P(i);XB(B)
- Try
- R(E);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(E);
- Vars
- S(a);N_GUARD,XR(E)::S(A)
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(f);
- Try
- R(E);CHECK
- Vars
- S(g);XR(E)::S(A)
- Refutation
- P(f);XR(E)
- Try
- R(F);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(f);XR(F)
- Try
- R(F);
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- S(g);XR(F)
- Try
- Q(G);N_PINP(d)
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- Refutation
- P(d);
- Try
- P(H);XR(k)
- Vars
- S(g);N_GUARD,XP(D)::S(A)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD::S(A),XS(g)
- S(g);N_GUARD::S(A)
- P(l);SBLOCK::S(I),XP(i)
- Refutation
- P(j);
- Try
- Actual
- R(F);
- Vars
- K(e);N_SPINP(d),S_FLIGHT,XR(E)::S(I),XP(i)
- S(g);N_GUARD,S_CUTP(f),XP(D)::R1(E)
- P(i);N_GUARD,XR(F)::R1(E),XP(f)
- R(k);SBLOCK::QAB1(G)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(g);N_GUARD,S_CUTP(f)::R1(E)
- S(g);N_GUARD,S_CUTP(f)::R1(E),XS(g)
- P(l);SBLOCK::S(I),XP(i)
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).