MESON Chess Problem Database
Problem Display
PID: 190399 (N2r2Q1/p1Rrp1NK/2p1n2p/2pkBR1p/1p1P1n1P/3BbP2/2P1P3/8 w - - 0 1)
Fiedler, Frank
Leipziger Volkszeitung, 2001
(First published on Mon Feb 12 2001)
#2
13 + 13
| 16210 | Problemschach-Jahrbuch (2001) | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Bf6#
- 1...Rxc7
- 2.Sxc7#
- 1...Rxa8
- 2.Rxd7#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Rxg8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...Sg2
- 2.Qxe6#
- 1...Sxd3
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...cxd4
- 2.Bxf4#
- 1...c4
- 2.Be4#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Rd6
- Tries
- 1.Ba6?
- 1...Rxc7
- 2.Sxc7#
- 1...Rxa8
- 2.Rxd7#
- 1...Rxg8
- 2.Rxd7#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 1...Rd6
- 2.Bf6#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Sg2
- 2.Qxe6#
- 1...Sd3
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...c4!
- 1...Rxc7
- 1.Rxh5?
- 1...Rxc7
- 2.Sxc7#
- 1...Rxa8
- 2.Rxd7#
- 1...Rxg8
- 2.Rxd7#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...Sxd3
- 2.Qxe6#
- 1...Sxh5
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Sg2
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...c4
- 2.Be4#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Rd6!
- 1...Rxc7
- 1.Rxa7?
- threat
- 2.Sb6#
- 1...Rxa8
- 2.Rxd7#
- 1...cxd4
- 2.Bxf4#
- 2.Bc7#
- 2.Bb8#
- 1...Rb8
- 2.Rxd7#
- 1...Rb7!
- threat
- 1.Rb7?
- 1...Rxa8
- 2.Rxd7#
- 1...Rxg8
- 2.Rxd7#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...Sxd3
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 2.Bc7#
- 2.Bb8#
- 1...Rd6
- 2.Sc7#
- 2.Bf6#
- 1...Rc7
- 2.Sxc7#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Sg2
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...c4
- 2.Be4#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Rxb7!
- 1...Rxa8
- 1.Qf7?
- 1...Rxc7
- 2.Sxc7#
- 1...Rxa8
- 2.Rxd7#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...Sxd3
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 1...Rd6
- 2.Bf6#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Rg8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Sg2
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...c4
- 2.Be4#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Rh8+!
- 1...Rxc7
- 1.c3?
- threat
- 2.Bxf4#
- 2.c4#
- 1...Bxd4
- 2.e4#
- 2.c4#
- 1...Sxe2
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Qxe6#
- 2.c4#
- 1...Sxd3
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 1...Rf8
- 2.Rxd7#
- 2.c4#
- 1...Sg2
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Qxe6#
- 2.c4#
- 1...Sh3
- 2.Bh2#
- 2.Bg3#
- 2.Bf4#
- 2.Qxe6#
- 2.c4#
- 1...Sg6
- 2.Qxe6#
- 2.c4#
- 1...c4
- 2.Be4#
- 2.Bxf4#
- 1...bxc3!
- threat
- 1.Ba6?
- Keys
- 1.Bb5!
- 1...Rxc7
- 2.Sxc7#
- 1...Rxa8
- 2.Rxd7#
- 1...Rxg8
- 2.Rxd7#
- 1...Bxd4
- 2.e4#
- 1...Sxe2
- 2.Qxe6#
- 1...cxd4
- 2.Bxf4#
- 1...cxb5
- 2.Rxc5#
- 1...Rd6
- 2.Bf6#
- 1...Rb8
- 2.Rxd7#
- 1...Rc8
- 2.Rxd7#
- 1...Re8
- 2.Rxd7#
- 1...Rf8
- 2.Rxd7#
- 1...Bc1
- 2.e4#
- 1...Bg1
- 2.e4#
- 1...Bd2
- 2.e4#
- 1...Bf2
- 2.e4#
- 1...Sg2
- 2.Qxe6#
- 1...Sd3
- 2.Qxe6#
- 1...Sh3
- 2.Qxe6#
- 1...Sg6
- 2.Qxe6#
- 1...b3
- 2.c4#
- 1...c4
- 2.Bxc6#
- 1...a5
- 2.Sb6#
- 1...a6
- 2.Sb6#
- 1...Rxc7
- 1.Bb5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(k);SBLOCK::R(H)+B(G)
- R(k);XR(I)::S(L),XR(k)
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD::R(I),XR(k)
- R(m);N_GUARD,N_SPINS(h),XQ(M)::R(I),XR(k)
- B(a);OGATE::P(B)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- S(c);N_GUARD::QAB1(M),XS(h)
- S(c);N_GUARD,XB(C)::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- P(d);SBLOCK,XP(E)::R(H)+B(G),XS(c)
- P(d);SBLOCK::B(C)
- P(j);N_GUARD::S(L)
- Tries
- Try
- B(C);
- Vars
- R(k);XR(I)::S(L),XR(k)
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD,N_SPINS(h),XQ(M)::R(I),XR(k)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- P(d);SBLOCK,XP(E)::R(H)+B(G),XS(c)
- R(k);SBLOCK::R(H)+B(G)
- R(m);N_GUARD::R(I),XR(k)
- B(a);OGATE::P(B)
- S(c);N_GUARD::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- Refutation
- P(d);
- Try
- R(H);XP(f)
- Vars
- R(k);XR(I)::S(L),XR(k)
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD,N_SPINS(h),XQ(M)::R(I),XR(k)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- S(c);N_GUARD,XB(C)::QAB1(M),XS(h)
- S(c);N_GUARD,XR(H)::QAB1(M),XS(h)
- P(d);SBLOCK,XP(E)::R(H)+B(G),XS(c)
- R(m);N_GUARD::R(I),XR(k)
- B(a);OGATE::P(B)
- S(c);N_GUARD::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- P(d);SBLOCK::B(C)
- P(j);N_GUARD::S(L)
- Refutation
- R(k);
- Try
- R(I);XP(j)
- Threat
- S(L)
- Vars
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD::R(I),XR(k)
- Refutation
- R(k);
- Try
- R(I);
- Vars
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD,N_SPINS(h),XQ(M)::R(I),XR(k)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- S(c);N_GUARD,XB(C)::QAB1(M),XS(h)
- R(k);N_GUARD::S(L),XR(k)
- R(m);N_GUARD::R(I),XR(k)
- B(a);OGATE::P(B)
- S(c);N_GUARD::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- P(d);SBLOCK::B(C)
- P(j);N_GUARD::S(L)
- Refutation
- R(k);XR(I)
- Try
- Q(M);
- Vars
- R(k);XR(I)::S(L),XR(k)
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- S(c);N_GUARD,XB(C)::QAB1(M),XS(h)
- P(d);SBLOCK,XP(E)::R(H)+B(G),XS(c)
- R(k);SBLOCK::R(H)+B(G)
- R(m);N_GUARD::R(I),XR(k)
- B(a);OGATE::P(B)
- S(c);N_GUARD::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- P(d);SBLOCK::B(C)
- P(j);N_GUARD::S(L)
- Refutation
- R(m);CHECK
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD,XB(C)::QAB1(M),XS(h)
- P(d);XP(E)::R(H)+B(G),XS(c)
- Refutation
- P(b);XP(A)
- Try
- Actual
- B(C);
- Vars
- R(k);XR(I)::S(L),XR(k)
- R(m);N_GUARD,XS(L)::R(I),XR(k)
- R(m);N_GUARD,N_SPINS(h),XQ(M)::R(I),XR(k)
- B(a);OGATE,XP(E)::P(B)
- S(c);N_GUARD,XP(B)::QAB1(M),XS(h)
- P(d);SBLOCK,XP(E)::R(H)+B(G),XS(c)
- P(g);OGATE,XB(C)::R1(I),XP(d)
- R(k);SBLOCK::R(H)+B(G)
- R(m);N_GUARD::R(I),XR(k)
- B(a);OGATE::P(B)
- S(c);N_GUARD::QAB1(M),XS(h)
- P(b);N_GUARD::P(A)
- P(d);SBLOCK::B(C),XP(g)
- P(j);N_GUARD::S(L)
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).