MESON Chess Problem Database
Problem Display
PID: 16825 (nKB2B1r/8/2R3Rr/2Nkp3/2b1p3/b1Q2n2/8/8 w - - 0 1)
Ceder, Sven Ture
Schackvarlden, 1943
#2
7 + 9
| 1101 | BCSC Final | 2013-2014 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Rgd6#
- 1...Rh2
- 2.Rgd6#
- 1...Rh3
- 2.Rgd6#
- 1...Rh4
- 2.Rgd6#
- 1...Rh5
- 2.Rgd6#
- 1...R6h7
- 2.Rgd6#
- 1...Bxc5
- 2.Rxc5#
- 1...Bf1
- 2.Rcd6#
- 1...Ba2
- 2.Rcd6#
- 1...Be2
- 2.Rcd6#
- 1...Bb3
- 2.Rcd6#
- 1...Bd3
- 2.Rcd6#
- 1...Bb5
- 2.Rcd6#
- 1...Ba6
- 2.Rcd6#
- 1...Rh1
- Tries
- 1.Sd3?
- threat
- 2.Qxc4#
- 1...Bd6+
- 2.Rcxd6#
- 1...Bxd3
- 2.Be6#
- 1...Bc5
- 2.Rxc5#
- 1...Ba2
- 2.Be6#
- 1...Bb3
- 2.Be6#
- 1...Bb5
- 2.Be6#
- 1...Ba6
- 2.Be6#
- 1...Sd2
- 2.Qxe5#
- 1...Sb6!
- threat
- 1.Sa4?
- threat
- 2.Qxc4#
- 1...Bd6+
- 2.Rcxd6#
- 1...Sb6
- 2.Sxb6#
- 1...Bc5
- 2.Rxc5#
- 1...Bf1
- 2.Be6#
- 1...Ba2
- 2.Be6#
- 1...Be2
- 2.Be6#
- 1...Bb3
- 2.Be6#
- 1...Bd3
- 2.Be6#
- 1...Bb5
- 2.Be6#
- 1...Ba6
- 2.Be6#
- 1...Sd2!
- threat
- 1.Sa6?
- threat
- 2.Qxc4#
- 1...Bd6+
- 2.Rcxd6#
- 1...Bxa6
- 2.Be6#
- 1...Bc5
- 2.Rxc5#
- 1...Bf1
- 2.Be6#
- 1...Ba2
- 2.Be6#
- 1...Be2
- 2.Be6#
- 1...Bb3
- 2.Be6#
- 1...Bd3
- 2.Be6#
- 1...Bb5
- 2.Be6#
- 1...Sb6
- 2.Sc7#
- 1...Sd2!
- threat
- 1.Bb7?
- threat
- 2.Ra6#
- 2.Rb6#
- 2.Rce6#
- 2.Rcf6#
- 2.Rc7#
- 2.Rc8#
- 1...Rxf8+
- 2.Rc8#
- 1...Rxg6
- 2.Re6#
- 2.Rf6#
- 2.Rxg6#
- 1...R6h7
- 2.Rc7#
- 2.Rgd6#
- 1...R8h7
- 2.Rc7#
- 1...Bb5
- 2.Rcd6#
- 1...Ba6
- 2.Rxa6#
- 2.Rcd6#
- 1...Sb6
- 2.Rxb6#
- 2.Rce6#
- 2.Rcf6#
- 2.Rc7#
- 2.Rc8#
- 1...Sc7
- 2.Ra6#
- 2.Rb6#
- 2.Rce6#
- 2.Rcf6#
- 2.Rxc7#
- 1...Sd4!
- threat
- 1.Rxh6?
- threat
- 2.Rhd6#
- 1...Bxc5
- 2.Rxc5#
- 1...Rxh6!
- threat
- 1.Qe3?
- threat
- 2.Rcd6#
- 2.Qxe4#
- 1...Rxg6
- 2.Qxe4#
- 1...Bxc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Bf1
- 2.Qxe4#
- 1...Ba2
- 2.Qxe4#
- 1...Be2
- 2.Qxe4#
- 1...Bb3
- 2.Qxe4#
- 1...Bb5
- 2.Qxe4#
- 1...Ba6
- 2.Qxe4#
- 1...Sd2
- 2.Rcd6#
- 1...Rh4
- 2.Rcd6#
- 2.Rgd6#
- 1...Sd4
- 2.Qxe4#
- 1...Sg5
- 2.Rcd6#
- 1...Bd3!
- threat
- 1.Sd3?
- Keys
- 1.Sd7!
- threat
- 2.Qxc4#
- 1...Bd6+
- 2.Rcxd6#
- 1...Sd2
- 2.Qxe5#
- 1...Bc5
- 2.Rxc5#
- 1...Bf1
- 2.Sf6#
- 1...Ba2
- 2.Sf6#
- 1...Be2
- 2.Sf6#
- 1...Bb3
- 2.Sf6#
- 1...Bd3
- 2.Sf6#
- 1...Bb5
- 2.Sf6#
- 1...Ba6
- 2.Sf6#
- 1...Sb6
- 2.Sxb6#
- threat
- 1.Sd7!
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(g);N_GUARD::R1(D)
- B(a);OGATE,XS(B)::R1(C),XB(a)
- B(c);::R1(C)
- Tries
- Try
- S(B);
- Threat
- QAB1(A),XB(c)
- Vars
- B(a);CHECK,N_GUARD::R1(C),XB(a)
- B(c);XS(B)::B(F)
- B(a);N_GUARD::R1(C),XB(a)
- B(c);::B(F)
- S(b);N_GUARD::QAR1(A),XP(f)
- Refutation
- S(h);
- Try
- S(B);
- Threat
- QAB1(A),XB(c)
- Vars
- B(a);CHECK,N_GUARD::R1(C),XB(a)
- S(h);N_GUARD::S(B),XS(h)
- B(a);N_GUARD::R1(C),XB(a)
- B(c);::B(F)
- Refutation
- S(b);
- Try
- S(B);
- Threat
- QAB1(A),XB(c)
- Vars
- B(a);CHECK,N_GUARD::R1(C),XB(a)
- B(c);XS(B)::B(F)
- B(a);N_GUARD::R1(C),XB(a)
- B(c);::B(F)
- S(h);N_GUARD::S(B)
- Refutation
- S(b);
- Try
- B(F);P_SPINB(G)
- Threat
- DUALS(6)
- Vars
- R(i);CHECK,XB(G)::B(F)+R(C)
- R(i);N_PINB(G)::B(F)+R(C)
- B(c);::B(F)+R(C),DCHECK
- Refutation
- S(b);
- Try
- R(D);XR(g)
- Threat
- R1(D)
- Vars
- B(a);OGATE,XS(B)::R1(C),XB(a)
- Refutation
- R(i);XR(D)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(g);XR(D)::QAB1(A),XP(d)
- B(c);::QAB1(A),XP(d)
- S(b);::R1(C)
- S(b);::QAB1(A),XP(d)
- Refutation
- B(c);
- Try
- Actual
- S(B);
- Threat
- QAB1(A),XB(c)
- Vars
- B(a);CHECK,N_GUARD::R1(C),XB(a)
- S(b);N_GUARD::QAR1(A),XP(f)
- B(a);N_GUARD::R1(C),XB(a)
- B(c);::S(B)
- S(h);N_GUARD::S(B),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).