MESON Chess Problem Database
Problem Display
PID: 214065 (4K3/1NPpbpPN/1P2k2P/1RprprpR/3pPp2/3P1P2/8/8 w - - 0 1)
Gottfried, Josef
Funkschach, 1927
#2
12 + 11
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...c4
- 2.exd5#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Rd6
- Tries
- 1.Sd8+?
- 1...Kd6
- 2.c8S#
- 1...Bxd8!
- 1...Kd6
- 1.Sf8+?
- 1...Kf6
- 2.g8S#
- 1...Bxf8!
- 1...Kf6
- 1.Rb1?
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...c4!
- 1...Rd6
- 1.Rb2?
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...c4!
- 1...Rd6
- 1.Rb3?
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...c4!
- 1...Rd6
- 1.Rh1?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...g4!
- 1...c4
- 1.Rh2?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...g4!
- 1...c4
- 1.Rh3?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...g4!
- 1...c4
- 1.c8Q?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 2.Qxd7#
- 1...Bf6
- 2.Sf8#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Bd8!
- 1...c4
- 1.c8S?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.Sxd8#
- 1...Bf8
- 2.Sd8#
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...d6!
- 1...c4
- 1.c8B?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 2.Bxd7#
- 1...Bf6
- 2.Sf8#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...Bd8!
- 1...c4
- 1.g8Q?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 2.Qxf7#
- 1...Bd8
- 2.cxd8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...Bf8!
- 1...c4
- 1.g8S?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.Sf8#
- 2.cxd8S#
- 1...Bf8
- 2.Sxf8#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6!
- 1...c4
- 1.g8B?
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 2.Bxf7#
- 1...Bd8
- 2.cxd8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...Bf8!
- 1...c4
- 1.Sd8+?
- Keys
- 1.Ra5!
- 1...c4
- 2.exd5#
- 1...Rd6
- 2.Sxc5#
- 1...Rf6
- 2.Sxg5#
- 1...Bd6
- 2.Sd8#
- 1...Bf6
- 2.Sf8#
- 1...Bd8
- 2.cxd8S#
- 1...Bf8
- 2.gxf8S#
- 1...g4
- 2.exf5#
- 1...d6
- 2.c8Q#
- 2.c8B#
- 1...f6
- 2.g8Q#
- 2.g8B#
- 1...c4
- 1.Ra5!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(c);::P(C),XR(d)
- P(g);::P(C),XR(f)
- P(i);::P=Q
- P(k);::P=Q
- Tries
- Try
- S(H);CHECK
- Vars
- K(h);P-FLIGHT::P=S
- Refutation
- B(j);XS(H)
- Try
- S(K);CHECK
- Vars
- K(h);P-FLIGHT::P=S
- Refutation
- B(j);XS(K)
- Try
- R(D);
- Vars
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(c);
- Try
- R(D);
- Vars
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(c);
- Try
- R(D);
- Vars
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(c);
- Try
- R(E);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(g);
- Try
- R(E);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(g);
- Try
- R(E);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(i);::P=Q
- P(k);::P=Q
- Refutation
- P(g);
- Try
- P(I);P_PINP(i)
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(k);::P=Q
- Refutation
- B(j);
- Try
- P(I);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);N_GUARD::S(H),XB(j)
- P(g);::P(C),XR(f)
- P(k);::P=Q
- Refutation
- P(i);
- Try
- P(I);P_PINP(i)
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(k);::P=Q
- Refutation
- B(j);
- Try
- P(J);P_PINP(k)
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- Refutation
- B(j);
- Try
- P(J);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD::S(K)
- B(j);N_GUARD::S(K),XB(j)
- P(g);::P(C),XR(f)
- P(i);::P=Q
- Refutation
- P(k);
- Try
- P(J);P_PINP(k)
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- Refutation
- B(j);
- Try
- Actual
- R(D);
- Vars
- P(c);::P(C),XR(d)
- R(d);N_GUARD,SBLOCK,S_CUTB(j)::S(H),XP(c)
- R(f);N_GUARD,SBLOCK,S_CUTB(j)::S(K),XP(g)
- B(j);N_GUARD,SBLOCK::S(H)
- B(j);N_GUARD,SBLOCK::S(K)
- B(j);OGATE::PXB(j)=S
- P(g);::P(C),XR(f)
- P(i);::P=Q
- P(k);::P=Q
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).