MESON Chess Problem Database
Problem Display
PID: 222390 (1QB5/4p3/4Pp2/5k1P/3PN3/3Pr1pK/3B2P1/8 w - - 0 1)
Berger, Johann Nepomuk
Das Schachproblem, 1883
#2
10 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Rxd3
- 2.Qf4#
- 1...Rf3
- 2.Qb5#
- 1...Re1
- Tries
- 1.Kh4?
- 1...Rxd3
- 2.Qf4#
- 1...Re1
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Rf3
- 2.Qb5#
- 1...Rxe4+!
- 1...Rxd3
- 1.Sxg3+?
- 1...Kg5
- 2.Bxe3#
- 1...Rxg3+!
- 1...Kg5
- 1.Bc1?
- 1...Rxd3
- 2.Qf4#
- 1...Re1
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Rf3
- 2.Qb5#
- 1...Rxe4!
- 1...Rxd3
- 1.Bd7?
- 1...Rxd3
- 2.Qf4#
- 1...Re1
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qf4#
- 2.Qb5#
- 1...Rf3
- 2.Qb5#
- 1...Rxe4!
- 1...Rxd3
- 1.Qxg3?
- 1...Rxg3+
- 2.Sxg3#
- 1...Rxe4
- 2.Qg6#
- 1...Re1
- 2.Qf2#
- 2.Qf4#
- 2.Qf3#
- 2.Qg4#
- 2.Qg6#
- 1...Re2
- 2.Qf4#
- 2.Qf3#
- 2.Qg4#
- 2.Qg6#
- 1...Rf3
- 2.Qxf3#
- 1...Rxd3!
- 1...Rxg3+
- 1.Qc7?
- 1...Rxd3
- 2.Qf4#
- 1...Re1
- 2.Sxg3#
- 2.Qf4#
- 2.Qa5#
- 2.Qc5#
- 1...Re2
- 2.Sxg3#
- 2.Qf4#
- 2.Qa5#
- 2.Qc5#
- 1...Rf3
- 2.Qa5#
- 2.Qc5#
- 1...Rxe4!
- 1...Rxd3
- 1.Qb7?
- 1...Rxd3
- 2.Qd5#
- 1...Rxe4
- 2.Qxe4#
- 2.dxe4#
- 1...Re1
- 2.Sxg3#
- 2.Qd5#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qd5#
- 2.Qb5#
- 1...Rf3
- 2.Qd5#
- 2.Qb5#
- 1...Kf4!
- 1...Rxd3
- 1.Qa8?
- 1...Rxd3
- 2.Qd5#
- 1...Rxe4
- 2.Qxe4#
- 2.dxe4#
- 1...Re1
- 2.Sxg3#
- 2.Qd5#
- 2.Qa5#
- 1...Re2
- 2.Sxg3#
- 2.Qd5#
- 2.Qa5#
- 1...Rf3
- 2.Qd5#
- 2.Qa5#
- 1...Kf4!
- 1...Rxd3
- 1.Kh4?
- Keys
- 1.Qb1!
- 1...Kf4
- 2.Qf1#
- 1...Rxd3
- 2.Sxg3#
- 1...Rxe4
- 2.dxe4#
- 1...Re1
- 2.Sxg3#
- 2.Qb5#
- 1...Re2
- 2.Sxg3#
- 2.Qb5#
- 1...Rf3
- 2.Qb5#
- 1...Kf4
- 1.Qb1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);XP(C)::QAR1(I)
- R(a);::QAR(I)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- R(a);XP(C)::QAR1(I)
- R(a);::QAR(I)
- Refutation
- R(a);CHECK,XS(F)
- Try
- S(F);CHECK,P_SPINS(F),XP(b)
- Vars
- K(c);P-FLIGHT,P_SPINR(a)::B(A),XR(a)
- Refutation
- R(a);CHECK,XS(F)
- Try
- B(A);
- Vars
- R(a);XP(C)::QAR1(I)
- R(a);::QAR(I)
- Refutation
- R(a);XS(F)
- Try
- B(J);
- Vars
- R(a);XP(C)::QAR1(I)
- R(a);::QAR(I)
- Refutation
- R(a);XS(F)
- Try
- Q(I);P_SPINQ(I),XP(b)
- Vars
- R(a);CHECK,XQ(I)::S(F),XR(a)
- R(a);N_PINQ(I),XS(F)::QAB1(I)
- R(a);N_GUARD::QAR2(I),XR(a)
- Refutation
- R(a);XP(C)
- Try
- Q(I);
- Vars
- R(a);XP(C)::QAR1(I)
- Refutation
- R(a);XS(F)
- Try
- Q(I);
- Vars
- R(a);XP(C)::QAR2(I)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- Q(I);
- Vars
- R(a);XP(C)::QAR2(I)
- Refutation
- K(c);P-FLIGHT,P_SPINR(a)
- Try
- Actual
- Q(I);
- Vars
- K(c);P-FLIGHT,P_SPINR(a)::QAR(I)
- R(a);N_GUARD,XP(C)::S(F),XP(b)
- R(a);OGATE,XS(F)::P(C),XR(a)
- R(a);::QAR(I)
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).