MESON Chess Problem Database
Problem Display
PID: 189391 (2r1N2Q/B4r2/3p2p1/1B4Rp/N3k3/b4RP1/b1n3P1/3Kn3 w - - 0 1)
Flatt, Karl
Winterthur Solving Ty., 1946
#2
10 + 10
| 15257 | Kunstwerke auf 64 Feldern (1922-1966) (Ott, Kummer, Schudel) | 1968 |
| 328 | Schweizerische Schachzeitung | 1972 |
SOLUTION
- SOUND
- Sets
- 1...Rf4
- 2.Rxf4#
- 1...Rf6
- 2.Sxf6#
- 1...Rb7
- 2.Sf6#
- 2.Rf4#
- 1...Rfc7
- 2.Sf6#
- 2.Rf4#
- 1...Rd7
- 2.Sf6#
- 2.Rf4#
- 1...Re7
- 2.Sf6#
- 2.Rf4#
- 1...Rg7
- 2.Sf6#
- 2.Rf4#
- 1...Rh7
- 2.Sf6#
- 2.Rf4#
- 1...Rc3
- 2.Sxc3#
- 1...Rc5
- 2.Sxd6#
- 1...Ra8
- 2.Sc3#
- 1...Rb8
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rxe8
- 2.Sc3#
- 1...Bc4
- 2.Sc3#
- 1...Bc1
- 2.Sxd6#
- 1...Bb2
- 2.Sxd6#
- 1...Bc5
- 2.Sc3#
- 1...Sd3
- 2.Bxd3#
- 1...Sa1
- 2.Re3#
- 2.Qd4#
- 1...Se3+
- 2.Rxe3#
- 1...Sb4
- 2.Sxd6#
- 2.Re3#
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Re5#
- 2.Qe5#
- 1...Rf4
- Tries
- 1.Sc5+?
- 1...Rxc5
- 2.Sxd6#
- 1...dxc5
- 2.Sd6#
- 2.Qe5#
- 1...Bxc5!
- 1...Rxc5
- 1.Bc6+?
- 1...Bd5
- 2.Sc3#
- 2.Bxd5#
- 1...d5
- 2.Sc3#
- 2.Re5#
- 2.Qe5#
- 1...Rxc6!
- 1...Bd5
- 1.Bc5?
- threat
- 2.Sc3#
- 2.Sxd6#
- 1...Se3+
- 2.Rxe3#
- 1...Rxf3
- 2.Sxd6#
- 1...Rxc5
- 2.Sxd6#
- 1...Rxe8
- 2.Sc3#
- 1...Bxc5
- 2.Sc3#
- 1...dxc5
- 2.Sc3#
- 2.Sd6#
- 2.Qe5#
- 1...Rf5
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 2.Sxf6#
- 1...Rd7
- 2.Sc3#
- 2.Sf6#
- 2.Rf4#
- 1...Rc6
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Bb2
- 2.Sxd6#
- 1...Bb4
- 2.Sxd6#
- 1...d5
- 2.Sc3#
- 2.Sd6#
- 2.Re5#
- 2.Qe5#
- 1...Sxg2!
- threat
- 1.Sc5+?
- Keys
- 1.Qf6!
- threat
- 2.Rf4#
- 1...Se3+
- 2.Rxe3#
- 1...Rxf6
- 2.Sxf6#
- 1...Rxa7
- 2.Qf4#
- 1...Sxg2
- 2.Bd3#
- 1...Sxf3
- 2.gxf3#
- 1...Rc4
- 2.Qe6#
- 1...Rc5
- 2.Sxd6#
- 1...Bc4
- 2.Sc3#
- 1...Bc1
- 2.Sxd6#
- 1...Bc5
- 2.Sc3#
- 1...Sd3
- 2.Bxd3#
- 1...Sd4
- 2.Qxd4#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- R(i);N_GUARD::R1(C),XR(i)
- R(i);N_GUARD::S(I),XR(i)
- R(j);N_GUARD::S(E),XR(j)
- R(j);S_CUTB(d)::S(I),XP(g)
- R(j);N_GUARD::S(E)
- R(j);N_GUARD,XS(I)::S(E)
- B(b);S_CUTR(j)::S(E)
- B(d);N_GUARD::S(I),XP(g)
- B(d);S_CUTR(j)::S(E)
- S(a);N_GUARD::B(F),XS(a)
- S(c);CHECK,N_GUARD::R1(C),XS(c)
- S(c);N_GUARD::QAR1(J),XS(c)
- Tries
- Try
- S(E);CHECK
- Vars
- R(j);XS(E)::S(I),XP(g)
- Refutation
- B(d);XS(E)
- Try
- B(F);CHECK
- Refutation
- R(j);XB(F)
- Try
- B(H);
- Threat
- DUALS(2)
- Vars
- S(c);CHECK,N_GUARD::R1(C),XS(c)
- R(i);XR(C)::S(I),XP(g)
- R(j);XB(H)::S(I),XP(g)
- R(j);XS(I)::S(E)
- B(d);XB(H)::S(E)
- R(i);::S(E)
- R(j);::S(E)
- B(d);::S(I),XP(g)
- Refutation
- S(a);XP(B)
- Try
- Actual
- Q(J);
- Threat
- R1(C)
- Vars
- S(c);CHECK,N_GUARD::R1(C),XS(c)
- R(i);XQ(J)::S(I),XR(i)
- R(i);N_GUARD,XB(H)::QAR1(J)
- S(a);N_GUARD,XP(B)::B(F)
- S(a);OGATE,XR(C)::P(B),XS(a)
- R(j);S_CUTB(b)::QAR2(J)
- R(j);S_CUTB(d)::S(I),XP(g)
- B(b);S_CUTR(j)::S(E)
- B(d);N_GUARD::S(I),XP(g)
- B(d);S_CUTR(j)::S(E)
- S(a);N_GUARD::B(F),XS(a)
- S(c);N_GUARD::QAR1(J),XS(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).