MESON Chess Problem Database
Problem Display
PID: 204255 (2NrkrN1/1R1b1q1R/2B3Q1/4b3/8/8/4K3/8 w - - 0 1)
Svoboda, Rudolf
Sachovy Svet, 1925
#2
7 + 6
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qxg6
- 2.Re7#
- 1...Rxg8
- 2.Qxf7#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bh2
- 2.Sf6#
- 1...Bc3
- 2.Sd6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sd6#
- 1...Bf4
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 2.Sf6#
- 1...Bf6
- 2.Sd6#
- 2.Sxf6#
- 1...Bc7
- 2.Sf6#
- 1...Bg7
- 2.Sd6#
- 1...Bb8
- 2.Sf6#
- 1...Bh8
- 2.Sd6#
- 1...Bxc6
- 2.Re7#
- 1...Qxg6
- Tries
- 1.Ra7?
- 1...Qxg6
- 2.Re7#
- 1...Rxg8
- 2.Qxf7#
- 1...Bxc6
- 2.Re7#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bh2
- 2.Sf6#
- 1...Bc3
- 2.Sd6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sd6#
- 1...Bf4
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 2.Sf6#
- 1...Bf6
- 2.Sd6#
- 2.Sxf6#
- 1...Bc7
- 2.Sf6#
- 1...Bg7
- 2.Sd6#
- 1...Bb8
- 2.Sf6#
- 1...Bh8
- 2.Sd6#
- 1...Rxc8!
- 1...Qxg6
- 1.Rb8?
- 1...Qxg6
- 2.Re7#
- 1...Rxc8
- 2.Rxc8#
- 1...Rxg8
- 2.Qxf7#
- 1...Bxb8
- 2.Sf6#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bh2
- 2.Sf6#
- 1...Bc3
- 2.Sd6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sd6#
- 1...Bf4
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 2.Sf6#
- 1...Bf6
- 2.Sd6#
- 2.Sxf6#
- 1...Bc7
- 2.Sf6#
- 1...Bg7
- 2.Sd6#
- 1...Bh8
- 2.Sd6#
- 1...Bxc6!
- 1...Qxg6
- 1.Rg7?
- 1...Qxg6
- 2.Re7#
- 1...Rxg8
- 2.Rxg8#
- 2.Qxf7#
- 1...Bxg7
- 2.Sd6#
- 1...Bxc6
- 2.Re7#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bh2
- 2.Sf6#
- 1...Bc3
- 2.Sd6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sd6#
- 1...Bf4
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 2.Sf6#
- 1...Bf6
- 2.Sd6#
- 2.Sxf6#
- 1...Bc7
- 2.Sf6#
- 1...Bb8
- 2.Sf6#
- 1...Rxc8!
- 1...Qxg6
- 1.Qe6+?
- 1...Qe7
- 2.Rxe7#
- 2.Qxe7#
- 1...Qxe6!
- 1...Qe7
- 1.Ra7?
- Keys
- 1.Rc7!
- 1...Qxg6
- 2.Re7#
- 1...Rxc8
- 2.Rxc8#
- 1...Rxg8
- 2.Qxf7#
- 1...Bxc7
- 2.Sf6#
- 1...Bxc6
- 2.Re7#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bh2
- 2.Sf6#
- 1...Bc3
- 2.Sd6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sd6#
- 1...Bf4
- 2.Sf6#
- 1...Bd6
- 2.Sxd6#
- 2.Sf6#
- 1...Bf6
- 2.Sd6#
- 2.Sxf6#
- 1...Bg7
- 2.Sd6#
- 1...Bh8
- 2.Sd6#
- 1...Qxg6
- 1.Rc7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(c);N_SPINQ(c),OGATE,XQ(C)::R1(E)
- R(f);N_GUARD,XS(G)::QAB1(C),XQ(c)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(G)
- B(b);N_SPINB(b),OGATE,XB(B)::R1(D)
- Tries
- Try
- R(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(C)::R1(E)
- R(f);N_GUARD,XS(G)::QAB1(C),XQ(c)
- B(b);N_SPINB(b),OGATE,XB(B)::R1(D)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(G)
- Refutation
- R(d);XS(F)
- Try
- R(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(C)::R1(E)
- R(d);OGATE,P_SPINR(d),XS(F)::R(D),XR(d)
- R(f);N_GUARD,XS(G)::QAB1(C),XQ(c)
- B(a);N_GUARD,XR(D)::S(G)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(G)
- Refutation
- B(b);N_SPINB(b),XB(B)
- Try
- R(E);
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(C)::R1(E)
- B(a);N_GUARD,XR(E)::S(F)
- B(b);N_SPINB(b),OGATE,XB(B)::R1(D)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(G)
- Refutation
- R(d);XS(F)
- Try
- Q(C);CHECK,N_PINQ(c)
- Refutation
- Q(c);XQ(C)
- Try
- Actual
- R(D);
- Vars
- Q(c);N_SPINQ(c),OGATE,XQ(C)::R1(E)
- R(d);OGATE,XS(F)::R(D),XR(d)
- R(f);N_GUARD,XS(G)::QAB1(C),XQ(c)
- B(a);N_GUARD,XR(D)::S(G)
- B(b);N_SPINB(b),OGATE,XB(B)::R1(D)
- B(a);N_GUARD::S(F)
- B(a);N_GUARD::S(G)
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).