MESON Chess Problem Database
Problem Display
PID: 90277 (8/B7/1p1Kpp2/3p1B1p/3k4/3PN3/1r3pQ1/3N4 w - - 0 1)
Mikulcak, Josef
Die Schwalbe, 1937
#2
7 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Sc2#
- 1...Ra2
- 2.Bxb6#
- 1...Rc2
- 2.Sxc2#
- 1...Rd2
- 2.Bxb6#
- 1...Re2
- 2.Bxb6#
- 1...Rb3
- 2.Sc2#
- 1...Rb4
- 2.Sc2#
- 1...Rb5
- 2.Sc2#
- 1...f1Q
- 2.Qxb2#
- 1...f1S
- 2.Qxb2#
- 1...f1B
- 2.Qxb2#
- 1...f1R
- 2.Qxb2#
- 1...h4
- 2.Qg4#
- 1...exf5
- 2.Qxd5#
- 1...e5
- 2.Qxd5#
- 1...Rb1
- Tries
- 1.Sf1?
- 1...exf5
- 2.Qxd5#
- 1...Rb1
- 2.Qxf2#
- 1...Ra2
- 2.Bxb6#
- 1...Rd2
- 2.Bxb6#
- 1...Re2
- 2.Bxb6#
- 1...Rb3
- 2.Qxf2#
- 1...Rb4
- 2.Qxf2#
- 1...Rb5
- 2.Qxf2#
- 1...h4
- 2.Qg4#
- 1...e5
- 2.Qxd5#
- 1...Rc2!
- 1...exf5
- 1.Sxd5?
- threat
- 2.Qe4#
- 1...exd5
- 2.Qxd5#
- 1...Re2
- 2.Bxb6#
- 1...exf5!
- threat
- 1.Bg6?
- 1...f1Q
- 2.Qxb2#
- 1...f1S
- 2.Qxb2#
- 1...f1B
- 2.Qxb2#
- 1...f1R
- 2.Qxb2#
- 1...Rb5
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Ra2
- 2.Bxb6#
- 1...Rc2
- 2.Sxc2#
- 1...Rd2
- 2.Bxb6#
- 1...Re2
- 2.Bxb6#
- 1...Rb3
- 2.Sc2#
- 1...Rb4
- 2.Sc2#
- 1...h4
- 2.Qg4#
- 1...e5
- 2.Qxd5#
- 1...f5!
- 1...f1Q
- 1.Bh7?
- 1...f1Q
- 2.Qxb2#
- 1...f1S
- 2.Qxb2#
- 1...f1B
- 2.Qxb2#
- 1...f1R
- 2.Qxb2#
- 1...Rb5
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Ra2
- 2.Bxb6#
- 1...Rc2
- 2.Sxc2#
- 1...Rd2
- 2.Bxb6#
- 1...Re2
- 2.Bxb6#
- 1...Rb3
- 2.Sc2#
- 1...Rb4
- 2.Sc2#
- 1...h4
- 2.Qg4#
- 1...e5
- 2.Qxd5#
- 1...f5!
- 1...f1Q
- 1.Qxf2?
- threat
- 2.Sc2#
- 2.Qh4#
- 2.Qxb2#
- 2.Qf4#
- 1...Rxf2
- 2.Bxb6#
- 1...Rb1
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Qh4#
- 2.Qf4#
- 1...Ra2
- 2.Sc2#
- 2.Bxb6#
- 2.Qh4#
- 2.Qf4#
- 1...Rc2
- 2.Sxc2#
- 2.Qh4#
- 2.Qf4#
- 1...Rd2
- 2.Sc2#
- 2.Bxb6#
- 2.Qh4#
- 2.Qf4#
- 1...Re2
- 2.Sc2#
- 2.Bxb6#
- 2.Qh4#
- 2.Qf4#
- 1...Rb3
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Qh4#
- 2.Qf4#
- 1...Rb4
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Qh4#
- 2.Qf4#
- 1...Rb5
- 2.Sf1#
- 2.Sc2#
- 2.Sg2#
- 2.Sc4#
- 2.Sg4#
- 2.Sxd5#
- 2.Qh4#
- 2.Qf4#
- 1...h4
- 2.Sc2#
- 2.Qxh4#
- 2.Qxb2#
- 2.Qf4#
- 1...e5
- 2.Sc2#
- 2.Qxb2#
- 1...exf5!
- threat
- 1.Sf1?
- Keys
- 1.Sc4!
- 1...dxc4
- 2.Qe4#
- 1...exf5
- 2.Qxd5#
- 1...f1Q
- 2.Qxb2#
- 1...f1S
- 2.Qxb2#
- 1...f1B
- 2.Qxb2#
- 1...f1R
- 2.Qxb2#
- 1...Rb1
- 2.Qxf2#
- 1...Ra2
- 2.Bxb6#
- 1...Rc2
- 2.Bxb6#
- 1...Rd2
- 2.Bxb6#
- 1...Re2
- 2.Bxb6#
- 1...Rb3
- 2.Qxf2#
- 1...Rb4
- 2.Qxf2#
- 1...Rb5
- 2.Qxf2#
- 1...h4
- 2.Qg4#
- 1...e5
- 2.Qxd5#
- 1...dxc4
- 1.Sc4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::B(G),XP(f)
- R(a);N_GUARD::S(D),XR(a)
- P(b);OGATE::QAB(B),XR(a)
- P(e);N_GUARD::QAR(B)
- P(g);N_GUARD,XB(E)::QAR1(B),XP(d)
- P(g);N_GUARD::QAR1(B),XP(d)
- Tries
- Try
- S(D);
- Vars
- P(g);N_GUARD,XB(E)::QAR1(B),XP(d)
- R(a);N_GUARD::QAB(B),XP(b)
- R(a);N_GUARD::B(G),XP(f)
- P(e);N_GUARD::QAR(B)
- P(g);N_GUARD::QAR1(B),XP(d)
- Refutation
- R(a);
- Try
- S(D);XP(d)
- Threat
- QAR1(B)
- Vars
- P(g);OGATE,XS(D)::QAR1(B),XP(g)
- R(a);N_GUARD::B(G),XP(f)
- Refutation
- P(g);XB(E)
- Try
- B(E);
- Vars
- P(b);OGATE::QAB(B),XR(a)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::B(G),XP(f)
- R(a);N_GUARD::S(D),XR(a)
- P(e);N_GUARD::QAR(B)
- P(g);N_GUARD::QAR1(B),XP(d)
- Refutation
- P(h);
- Try
- B(E);
- Vars
- P(b);OGATE::QAB(B),XR(a)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::B(G),XP(f)
- R(a);N_GUARD::S(D),XR(a)
- P(e);N_GUARD::QAR(B)
- P(g);N_GUARD::QAR1(B),XP(d)
- Refutation
- P(h);
- Try
- Q(B);XP(b)
- Threat
- DUALS(4)
- Vars
- R(a);N_GUARD,XQ(B)::B(G),XP(f)
- Refutation
- P(g);XB(E)
- Try
- Actual
- S(D);
- Vars
- P(d);N_GUARD,XS(D)::QAR1(B)
- P(g);N_GUARD,XB(E)::QAR1(B),XP(d)
- P(b);OGATE::QAB(B),XR(a)
- R(a);N_GUARD::QAB(B),XP(b)
- R(a);N_GUARD::B(G),XP(f)
- P(e);N_GUARD::QAR(B)
- P(g);N_GUARD::QAR1(B),XP(d)
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).