MESON Chess Problem Database
Problem Display
PID: 35190 (KB6/7N/Q3P3/1pbr1k1P/1R6/5P1n/4R3/3N4 w - - 0 1)
Knoppel, Jan Heribert
Springaren, 1950
#2
10 + 5
| 3680 | Jan Knoppel Udvalgte Skakproblemer | 1955 |
SOLUTION
- SOUND
- Sets
- 1...Rxd1
- 2.Re5#
- 1...Rd2
- 2.Re5#
- 1...Rd3
- 2.Re5#
- 1...Rd4
- 2.Se3#
- 1...Re5
- 2.Rxe5#
- 1...Rd7
- 2.Re5#
- 1...Rd8
- 2.Re5#
- 1...Be3
- 2.Sxe3#
- 1...Bxb4
- 2.Se3#
- 1...Be7
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 1...Sg1
- 2.Rf4#
- 1...Sf2
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sg5
- 2.Rf4#
- 1...Rxd1
- Tries
- 1.Qb7?
- threat
- 2.Qxd5#
- 2.Qf7#
- 1...Rxd1
- 2.Re5#
- 2.Qe4#
- 2.Qf7#
- 1...Re5
- 2.Rxe5#
- 2.Qf7#
- 1...Rd6
- 2.Qe4#
- 2.Qf7#
- 1...Rd2
- 2.Re5#
- 2.Qe4#
- 2.Qf7#
- 1...Rd3
- 2.Re5#
- 2.Qe4#
- 2.Qf7#
- 1...Rd4
- 2.Qf7#
- 1...Rd7
- 2.Re5#
- 2.Qe4#
- 1...Rd8
- 2.Re5#
- 2.Qe4#
- 2.Qf7#
- 1...Bd6
- 2.Qf7#
- 1...Be7
- 2.Qxd5#
- 1...Sf4
- 2.Rxf4#
- 2.Qf7#
- 1...Sg5
- 2.Rf4#
- 2.Qxd5#
- 1...Bd4!
- threat
- 1.Qc6?
- threat
- 2.Qxd5#
- 1...Rxd1
- 2.Re5#
- 2.Qe4#
- 1...Rd6
- 2.Qe4#
- 1...Rd2
- 2.Re5#
- 2.Qe4#
- 1...Rd3
- 2.Re5#
- 2.Qe4#
- 1...Rd4
- 2.Se3#
- 1...Re5
- 2.Rxe5#
- 1...Rd7
- 2.Re5#
- 2.Qe4#
- 1...Rd8
- 2.Re5#
- 2.Qe4#
- 1...Bd4
- 2.Qc2#
- 1...Sf4
- 2.Rxf4#
- 1...Bd6!
- threat
- 1.Qb7?
- Keys
- 1.Qc8!
- 1...Rxd1
- 2.Re5#
- 1...Bxb4
- 2.Se3#
- 1...Rd6
- 2.Qf8#
- 1...Rd2
- 2.Re5#
- 1...Rd3
- 2.Re5#
- 1...Rd4
- 2.Se3#
- 1...Re5
- 2.Rxe5#
- 1...Rd7
- 2.Re5#
- 1...Rd8
- 2.Re5#
- 1...Bg1
- 2.Qf8#
- 1...Bf2
- 2.Qf8#
- 1...Be3
- 2.Sxe3#
- 1...Bd4
- 2.Qc2#
- 1...Bb6
- 2.Qf8#
- 1...Bd6
- 2.e7#
- 1...Ba7
- 2.Qf8#
- 1...Be7
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 2.Qxf8#
- 1...Sg1
- 2.Rf4#
- 1...Sf2
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sg5
- 2.Rf4#
- 1...Rxd1
- 1.Qc8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 1
- Sets
- R(d);N_GUARD,XS(A)::R1(B)
- R(d);N_GUARD::R1(B)
- R(d);S_CUTB(c)::S(A)
- R(d);N_GUARD::R1(B),XR(d)
- R(d);N_GUARD,P_PINB(J)::R1(B)
- B(c);N_GUARD::S(A),XB(c)
- B(c);N_GUARD,XR(D)::S(A)
- B(c);N_GUARD::S(A)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- Tries
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- R(d);::QAR2(F)
- B(c);::QAR2(F)
- B(c);::QAR2(F),XR(d)
- Refutation
- B(c);
- Try
- Q(F);
- Threat
- QAR2(F),XR(d)
- Vars
- R(d);OGATE::QAB1(F)
- R(d);S_CUTB(c)::S(A)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);OGATE::QAB(F)
- S(a);N_GUARD::R1(D),XS(a)
- Refutation
- B(c);
- Try
- Actual
- Q(F);
- Vars
- R(d);N_GUARD,XS(A)::R1(B)
- B(c);N_GUARD,XR(D)::S(A)
- R(d);S_CUTB(c)::QAR(F)
- R(d);N_GUARD::R1(B)
- R(d);S_CUTB(c)::S(A)
- R(d);N_GUARD::R1(B),XR(d)
- B(c);N_GUARD::QAR(F)
- B(c);N_GUARD::S(A),XB(c)
- B(c);OGATE::QAB(F)
- B(c);S_CUTR(d)::QAB(F)+P(G)
- B(c);N_GUARD::S(A)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
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).