MESON Chess Problem Database
Problem Display
PID: 90297 (1n6/8/1N3p2/p1b2Q2/Bk1N1nK1/1P4P1/1Pp5/2r5 w - - 0 1)
Hertmann, Sandor
Die Schwalbe, 1928
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sxc2#
- 1...Rb1
- 2.Sxc2#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rf1
- 2.Sxc2#
- 1...Rg1
- 2.Sxc2#
- 1...Rh1
- 2.Sxc2#
- 1...Bxd4
- 2.Qb5#
- 1...Bxb6
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...Se2
- 2.Sd5#
- 1...Sg2
- 2.Sd5#
- 1...Sd3
- 2.Sd5#
- 1...Sh3
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Ra1
- Tries
- 1.Kf3?
- 1...Bxd4
- 2.Qb5#
- 1...Bxb6
- 2.Qb5#
- 1...Ra1
- 2.Sxc2#
- 1...Rb1
- 2.Sxc2#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rg1
- 2.Sxc2#
- 1...Rh1
- 2.Sxc2#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...Se2
- 2.Sd5#
- 1...Sg2
- 2.Sd5#
- 1...Sd3
- 2.Sd5#
- 1...Sh3
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Rf1+!
- 1...Bxd4
- 1.Qd3?
- threat
- 2.Qc4#
- 2.Qb5#
- 2.Qd2#
- 2.Qc3#
- 1...Bxd4
- 2.Qc4#
- 2.Qb5#
- 2.Qxd4#
- 1...Bxb6
- 2.Qc4#
- 2.Qb5#
- 2.Qc3#
- 1...Sxd3
- 2.Sd5#
- 1...Bd6
- 2.Qc4#
- 2.Qb5#
- 2.Qc3#
- 1...Be7
- 2.Qc4#
- 2.Qb5#
- 2.Qc3#
- 1...Bf8
- 2.Qc4#
- 2.Qb5#
- 2.Qc3#
- 1...Rd1
- 2.Sxc2#
- 2.Qc4#
- 2.Qb5#
- 2.Qc3#
- 1...Se2
- 2.Sd5#
- 2.Qc4#
- 2.Qb5#
- 1...Sd5
- 2.Sxd5#
- 2.Qc4#
- 2.Qb5#
- 1...f5+!
- threat
- 1.Qe6?
- threat
- 2.Qc4#
- 1...Sxe6
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...f5+!
- threat
- 1.Qd7?
- threat
- 2.Qb5#
- 1...Sxd7
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...f5+!
- threat
- 1.Qc8?
- 1...Bxd4
- 2.Qc4#
- 1...Bxb6
- 2.Qc3#
- 2.Qc4#
- 1...Ra1
- 2.Sxc2#
- 1...Rb1
- 2.Sxc2#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rf1
- 2.Sxc2#
- 1...Rg1
- 2.Sxc2#
- 1...Rh1
- 2.Sxc2#
- 1...Bd6
- 2.Qc3#
- 2.Qc4#
- 1...Be7
- 2.Qc3#
- 2.Qc4#
- 1...Bf8
- 2.Qc3#
- 2.Qc4#
- 2.Qxf8#
- 1...Se2
- 2.Sd5#
- 1...Sg2
- 2.Sd5#
- 1...Sd3
- 2.Sd5#
- 1...Sh3
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...f5+!
- 1...Bxd4
- 1.Qd5?
- threat
- 2.Qc4#
- 1...Sxd5
- 2.Sxd5#
- 1...f5+!
- threat
- 1.Qh5?
- 1...Bxd4
- 2.Qb5#
- 1...Bxb6
- 2.Qb5#
- 1...Sxh5
- 2.Sd5#
- 1...Ra1
- 2.Sxc2#
- 1...Rb1
- 2.Sxc2#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rf1
- 2.Sxc2#
- 1...Rg1
- 2.Sxc2#
- 1...Rh1
- 2.Sxc2#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...Se2
- 2.Sd5#
- 1...Sg2
- 2.Sd5#
- 1...Sd3
- 2.Sd5#
- 1...Sh3
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...f5+!
- 1...Bxd4
- 1.gxf4?
- threat
- 2.Sd5#
- 1...Bxd4
- 2.Qb5#
- 1...Bxb6
- 2.Qb5#
- 1...Bd6
- 2.Qb5#
- 1...Be7
- 2.Qb5#
- 1...Bf8
- 2.Qb5#
- 1...Rg1+!
- threat
- 1.Kf3?
- Keys
- 1.Qxf6!
- 1...Bxd4
- 2.Qxd4#
- 1...Bxb6
- 2.Qxb6#
- 1...Bd6
- 2.Qxd6#
- 1...Be7
- 2.Qxe7#
- 1...Bf8
- 2.Qxf8#
- 1...Ra1
- 2.Sxc2#
- 1...Rb1
- 2.Sxc2#
- 1...Rd1
- 2.Sxc2#
- 1...Re1
- 2.Sxc2#
- 1...Rf1
- 2.Sxc2#
- 1...Rg1
- 2.Sxc2#
- 1...Rh1
- 2.Sxc2#
- 1...Se2
- 2.Sd5#
- 1...Sg2
- 2.Sd5#
- 1...Sd3
- 2.Sd5#
- 1...Sh3
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Sa6
- 2.Sc6#
- 1...Sc6
- 2.Sxc6#
- 1...Sd7
- 2.Sc6#
- 1...Bxd4
- 1.Qxf6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(E),XP(b)
- R(a);N_GUARD,P_PINP(C)::S(E),XP(b)
- B(f);OGATE,XS(E)::QAR1(G)
- B(f);OGATE,XS(H)::QAR1(G)
- B(f);OGATE::QAR1(G)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- B(f);OGATE,XS(E)::QAR1(G)
- B(f);OGATE,XS(H)::QAR1(G)
- R(a);N_GUARD::S(E),XP(b)
- B(f);OGATE::QAR1(G)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- R(a);CHECK
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- S(d);N_GUARD,XQ(G)::S(H)
- Refutation
- P(g);CHECK
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(d);N_GUARD,XQ(G)::S(H)
- S(d);N_GUARD::S(H),XS(d)
- Refutation
- P(g);CHECK
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(h);N_GUARD,XQ(G)::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- P(g);CHECK
- Try
- Q(G);
- Vars
- B(f);OGATE,XS(E)::QAR1(G)
- R(a);N_GUARD::S(E),XP(b)
- R(a);N_GUARD,P_PINP(C)::S(E),XP(b)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- P(g);CHECK
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- S(d);XQ(G)::S(H),XS(d)
- Refutation
- P(g);CHECK
- Try
- Q(G);
- Vars
- B(f);OGATE,XS(E)::QAR1(G)
- B(f);OGATE,XS(H)::QAR1(G)
- S(d);N_GUARD,XQ(G)::S(H)
- R(a);N_GUARD::S(E),XP(b)
- R(a);N_GUARD,P_PINP(C)::S(E),XP(b)
- B(f);OGATE::QAR1(G)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- Refutation
- P(g);CHECK
- Try
- P(C);XS(d)
- Threat
- S(H)
- Vars
- B(f);OGATE,XS(E)::QAR1(G)
- B(f);OGATE,XS(H)::QAR1(G)
- B(f);OGATE::QAR1(G)
- Refutation
- R(a);CHECK
- Try
- Actual
- Q(G);XP(g)
- Vars
- B(f);OGATE,XS(E)::QAR2(G),XB(f)
- B(f);OGATE,XS(H)::QAR2(G),XB(f)
- B(f);OGATEB::QAB(G),XB(f)
- R(a);N_GUARD::S(E),XP(b)
- R(a);N_GUARD,P_PINP(C)::S(E),XP(b)
- S(d);N_GUARD::S(H)
- S(d);N_GUARD::S(H),XS(d)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
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).