MESON Chess Problem Database
Problem Display
PID: 99171 (1bbQ3n/8/4p1pN/2p1kpP1/5R1P/2r2BP1/2pN4/2K5 w - - 0 1)
Herland, Sigmund
Magyar Sakkvilag, 1914
#2
9 + 10
| 16336 | Problemes choisis composes par Sigmund Herland (Yaremska-Iliescu) | 2001 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rxf3
- 2.Sxf3#
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Bd7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...Ra3
- Tries
- 1.Sxf5?
- threat
- 2.Qf6#
- 2.Qxh8#
- 1...Rxf3
- 2.Sxf3#
- 2.Sc4#
- 1...exf5
- 2.Qf6#
- 2.Qd5#
- 1...Sf7
- 2.Qf6#
- 1...gxf5!
- threat
- 1.Sg8?
- 1...Rxf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...c4
- 2.Qd4#
- 1...Sf7!
- 1...Rxf3
- 1.Bh1?
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rf3
- 2.Sxf3#
- 2.Sc4#
- 1...Rc4
- 2.Sf3#
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...Rxg3!
- 1...Bd7
- 1.Bg2?
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rf3
- 2.Sxf3#
- 2.Sc4#
- 1...Rc4
- 2.Sf3#
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...Rxg3!
- 1...Bd7
- 1.Bc6?
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rf3
- 2.Sxf3#
- 2.Sc4#
- 1...Rc4
- 2.Sf3#
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...Rxg3!
- 1...Bd7
- 1.Rb4?
- 1...Rxf3
- 2.Sxf3#
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Rb5#
- 1...f4
- 2.Re4#
- 2.gxf4#
- 1...cxb4!
- 1...Rxf3
- 1.Rc4?
- 1...Rxf3
- 2.Sxf3#
- 2.Rxc5#
- 1...Rxc4
- 2.Sxc4#
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Rxc5#
- 1...Rb3
- 2.Rxc5#
- 1...Re3
- 2.Rxc5#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...f4
- 2.Re4#
- 2.gxf4#
- 1...Rd3!
- 1...Rxf3
- 1.Rd4?
- threat
- 2.Qf6#
- 2.Qxh8#
- 1...Sf7
- 2.Sxf7#
- 2.Qf6#
- 1...cxd4!
- threat
- 1.Rg4?
- 1...Rxf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...f4
- 2.gxf4#
- 1...fxg4!
- 1...Rxf3
- 1.Rxf5+?
- 1...exf5
- 2.Qf6#
- 2.Qd5#
- 1...gxf5!
- 1...exf5
- 1.Qxc8?
- threat
- 2.Qxb8#
- 1...Rxf3
- 2.Qxc5#
- 1...Rb3
- 2.Sc4#
- 2.Qxc5#
- 1...Rd3
- 2.Sc4#
- 1...Bd6
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Sf7
- 2.Sxf7#
- 1...Kd6!
- threat
- 1.h5?
- 1...Rxf3
- 2.Sxf3#
- 2.Sc4#
- 1...Bd7
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Qd4#
- 1...gxh5!
- 1...Rxf3
- 1.Sxf5?
- Keys
- 1.Ra4!
- 1...Rxf3
- 2.Sxf3#
- 1...Bd7
- 2.Qxb8#
- 1...Ra3
- 2.Sc4#
- 1...Rb3
- 2.Sc4#
- 1...Rd3
- 2.Sc4#
- 1...Re3
- 2.Sc4#
- 1...Rc4
- 2.Sxc4#
- 1...Bd6
- 2.Qf6#
- 2.Qxh8#
- 1...Ba7
- 2.Qc7#
- 1...Bc7
- 2.Qxc7#
- 1...Ba6
- 2.Qxb8#
- 1...Bb7
- 2.Qxb8#
- 1...Sf7
- 2.Sxf7#
- 1...c4
- 2.Ra5#
- 1...f4
- 2.Re4#
- 2.gxf4#
- 1...Rxf3
- 1.Ra4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- B(i);OGATE::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- Tries
- Try
- S(H);XP(e)
- Threat
- DUALS(2)
- Vars
- S(j);::QAB1(I)
- Refutation
- P(g);XS(H)
- Try
- S(H);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);SBLOCK::QAB1(I)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- P(c);N_GUARD::QAB1(I)
- Refutation
- S(j);
- Try
- B(C);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- Refutation
- R(b);XP(D)
- Try
- B(C);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- Refutation
- R(b);XP(D)
- Try
- B(C);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- Refutation
- R(b);XP(D)
- Try
- R(E);
- Vars
- R(b);XB(C)::S(B),XR(b)
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);OGATEB::R(E)
- Refutation
- P(c);XR(E)
- Try
- R(E);
- Vars
- R(b);XR(E)::S(B),XR(b)
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::R(E),XP(c)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- Refutation
- R(b);
- Try
- R(E);
- Threat
- DUALS(2)
- Refutation
- P(c);XR(E)
- Try
- R(E);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- P(e);OGATE::P(D),XP(e)
- Refutation
- P(e);XR(E)
- Try
- R(E);CHECK,XP(e)
- Refutation
- P(g);XR(E)
- Try
- Q(I);XB(i)
- Threat
- QAB(I),XB(h)
- Vars
- R(b);N_GUARD,XB(C)::QAR2(I),XP(c)
- R(b);N_GUARD::S(B)
- B(h);SBLOCK::QAB(I),XS(j)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- Refutation
- K(d);S_FLIGHT
- Try
- P(F);
- Vars
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);N_GUARD::QAB1(I)
- Refutation
- P(g);XP(F)
- Try
- Actual
- R(E);
- Vars
- R(b);XB(C)::S(B),XR(b)
- B(i);OGATE::QAB(I),XB(h)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- B(h);N_GUARD::QAB(I)
- B(h);N_GUARD::QAB(I),XB(h)
- S(j);N_GUARD::S(H),XS(j)
- P(c);OGATEB::R(E)
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).