MESON Chess Problem Database
Problem Display
PID: 90292 (8/8/Q1p5/B1pp4/2Bkp1N1/4N3/5r1p/6bK w - - 0 1)
Palkoska, Emil
Die Schwalbe, 1934
#2
6 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Sc2#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 1...Rf6
- 2.Sc2#
- 1...Rf7
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 1...dxc4
- 2.Qxc4#
- 1...Rf1
- Tries
- 1.Bf1?
- 1...Rxf1
- 2.Sc2#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 1...Rf6
- 2.Sc2#
- 1...Rf7
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 1...c4!
- 1...Rxf1
- 1.Ba2?
- 1...Rxa2
- 2.Sf5#
- 1...Rf1
- 2.Sc2#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 1...Rf6
- 2.Sc2#
- 1...Rf7
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 1...c4!
- 1...Rxa2
- 1.Be2?
- threat
- 2.Sc2#
- 1...Rxe2
- 2.Sf5#
- 1...c4!
- threat
- 1.Bb3?
- 1...Rf1
- 2.Sc2#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 1...Rf4
- 2.Sc2#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 1...Rf6
- 2.Sc2#
- 1...Rf7
- 2.Sc2#
- 1...Rf8
- 2.Sc2#
- 1...c4!
- 1...Rf1
- 1.Be1?
- 1...dxc4
- 2.Qxc4#
- 1...Rf1
- 2.Sc2#
- 2.Qa1#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 2.Qa1#
- 1...Rf4
- 2.Sc2#
- 2.Qa1#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 2.Qa1#
- 1...Rf6
- 2.Sc2#
- 2.Qa1#
- 1...Rf7
- 2.Sc2#
- 2.Qa1#
- 1...Rf8
- 2.Sc2#
- 2.Qa1#
- 1...Rd2!
- 1...dxc4
- 1.Bd2?
- threat
- 2.Sc2#
- 2.Qa1#
- 1...dxc4
- 2.Qxc4#
- 1...Rf1
- 2.Sc2#
- 1...Rxd2!
- threat
- 1.Bb4?
- 1...dxc4
- 2.Qxc4#
- 1...Rf1
- 2.Sc2#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 2.Qa1#
- 1...Rf4
- 2.Sc2#
- 2.Qa1#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 2.Qa1#
- 1...Rf6
- 2.Sc2#
- 2.Qa1#
- 1...Rf7
- 2.Sc2#
- 2.Qa1#
- 1...Rf8
- 2.Sc2#
- 2.Qa1#
- 1...cxb4!
- 1...dxc4
- 1.Bc7?
- threat
- 2.Be5#
- 1...dxc4
- 2.Qxc4#
- 1...Rf5
- 2.Qa1#
- 1...Kc3!
- threat
- 1.Qb5?
- 1...dxc4
- 2.Qxc4#
- 1...Rf1
- 2.Sc2#
- 2.Qb2#
- 1...Ra2
- 2.Sf5#
- 1...Rb2
- 2.Sf5#
- 2.Qxb2#
- 1...Rc2
- 2.Sxc2#
- 2.Sf5#
- 1...Rd2
- 2.Sf5#
- 1...Re2
- 2.Sf5#
- 1...Rg2
- 2.Sf5#
- 1...Rf3
- 2.Sc2#
- 2.Qb2#
- 1...Rf4
- 2.Sc2#
- 2.Qb2#
- 1...Rf5
- 2.Sc2#
- 2.Sxf5#
- 2.Qb2#
- 1...Rf6
- 2.Sc2#
- 2.Qb2#
- 1...Rf7
- 2.Sc2#
- 2.Qb2#
- 1...Rf8
- 2.Sc2#
- 2.Qb2#
- 1...cxb5!
- 1...dxc4
- 1.Qxc6?
- threat
- 2.Qxd5#
- 1...dxc4
- 2.Qd5#
- 2.Qd7#
- 2.Qd6#
- 1...Rf5!
- threat
- 1.Bf1?
- Keys
- 1.Qb7!
- 1...dxc4
- 2.Qd7#
- 1...Rf1
- 2.Qb2#
- 1...Ra2
- 2.Qg7#
- 1...Rb2
- 2.Qxb2#
- 2.Qg7#
- 1...Rc2
- 2.Qg7#
- 1...Rd2
- 2.Qg7#
- 1...Re2
- 2.Qg7#
- 1...Rg2
- 2.Qg7#
- 1...Rf3
- 2.Qb2#
- 1...Rf4
- 2.Qb2#
- 1...Rf5
- 2.Qb2#
- 1...Rf6
- 2.Qb2#
- 1...Rf7
- 2.Qb2#
- 1...Rf8
- 2.Qb2#
- 1...dxc4
- 1.Qb7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 11
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::S(B)
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- Tries
- Try
- B(C);
- Vars
- R(b);N_GUARD,XB(C)::S(B)
- R(b);N_GUARD::S(B)
- Refutation
- P(f);
- Try
- B(C);
- Vars
- R(b);N_GUARD,XB(C)::S(B)
- R(b);N_GUARD::S(B)
- Refutation
- P(f);
- Try
- B(C);
- Threat
- S(B)
- Vars
- R(b);N_GUARD,XB(C)::S(B)
- Refutation
- P(f);
- Try
- B(C);
- Vars
- R(b);N_GUARD::S(B)
- Refutation
- P(f);
- Try
- B(E);
- Vars
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- R(b);N_GUARD::S(B)
- Refutation
- R(b);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- R(b);::S(B)
- Refutation
- R(b);XB(E)
- Try
- B(E);
- Vars
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- R(b);N_GUARD::S(B)
- Refutation
- P(f);XB(E)
- Try
- B(E);
- Threat
- B(E)
- Vars
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- R(b);N_GUARD::QAB(F)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(F);
- Vars
- P(g);OGATE,XB(C)::QAR1(F),XP(g)
- R(b);N_GUARD::S(B)
- Refutation
- P(h);XQ(F)
- Try
- Q(F);XP(h)
- Threat
- QAR1(F),XP(g)
- Refutation
- R(b);
- Try
- Actual
- Q(F);
- Vars
- P(g);OGATEB,XB(C)::QAR(F)
- R(b);N_GUARD::QAB(F)
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).