MESON Chess Problem Database
Problem Display
PID: 17553 (4k3/3R1R2/8/8/2K1Nr2/4Q3/8/8 w - - 0 1)
Hartong, Jan
Schaakmat, 1947
#2
5 + 2
| 102 | Probleemblad | 1974 |
| 3295 | Einfuhrung in die Welt des Schachproblem | 1984 |
| 2838 | Fun with Chess Miniatures | 1996 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Sd2#
- 2.Sf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rf2
- 2.Sd2#
- 2.Sxf2#
- 2.Sc3#
- 2.Sg3#
- 2.Sc5#
- 2.Sg5#
- 2.Sd6#
- 2.Sf6#
- 1...Rf3
- 2.Sd6#
- 2.Sf6#
- 1...Rxe4+
- 2.Qxe4#
- 1...Rf5
- 2.Sd6#
- 2.Sf6#
- 1...Rf6
- 2.Sd6#
- 2.Sxf6#
- 1...Rf1
- Tries
- 1.Kb3?
- threat
- 2.Sd6#
- 2.Sf6#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf6
- 2.Sd6#
- 2.Sxf6#
- 1...Rxf7!
- threat
- 1.Kc3?
- threat
- 2.Sd6#
- 2.Sf6#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf6
- 2.Sd6#
- 2.Sxf6#
- 1...Rxf7!
- threat
- 1.Kd3?
- threat
- 2.Sd6#
- 2.Sf6#
- 1...Rxe4
- 2.Qxe4#
- 1...Rf6
- 2.Sd6#
- 2.Sxf6#
- 1...Rxf7!
- threat
- 1.Qf2?
- 1...Rxf2
- 2.Sd6#
- 1...Rxf7
- 2.Qxf7#
- 1...Rg4
- 2.Rfe7#
- 1...Rf3
- 2.Sd6#
- 1...Rh4
- 2.Rfe7#
- 1...Rf5
- 2.Sd6#
- 1...Rf6
- 2.Sxf6#
- 1...Rxe4+!
- 1...Rxf2
- 1.Qd4?
- threat
- 2.Sd6#
- 2.Rde7#
- 2.Qe5#
- 2.Qh8#
- 1...Rxe4
- 2.Qxe4#
- 1...Rg4
- 2.Sd6#
- 2.Sf6#
- 2.Rde7#
- 2.Qe5#
- 1...Rh4
- 2.Sd6#
- 2.Sf6#
- 2.Rde7#
- 2.Qe5#
- 1...Rf5
- 2.Sd6#
- 2.Rde7#
- 2.Qh8#
- 1...Rf6
- 2.Sxf6#
- 2.Rde7#
- 1...Rxf7!
- threat
- 1.Qc5?
- threat
- 2.Qe7#
- 2.Qf8#
- 2.Qe5#
- 2.Qc8#
- 1...Rxf7
- 2.Qc8#
- 1...Rf5
- 2.Sd6#
- 2.Qe7#
- 2.Qf8#
- 2.Qc8#
- 1...Rf6
- 2.Sxf6#
- 2.Qe7#
- 2.Qf8#
- 2.Qc8#
- 1...Rxe4+!
- threat
- 1.Qb6?
- threat
- 2.Rde7#
- 2.Qd8#
- 2.Qe6#
- 2.Qb8#
- 1...Rxf7
- 2.Qd8#
- 1...Rf6
- 2.Sxf6#
- 2.Rde7#
- 2.Qd8#
- 2.Qb8#
- 1...Rxe4+!
- threat
- 1.Qd3?
- threat
- 2.Rde7#
- 1...Rxe4+
- 2.Qxe4#
- 1...Rxf7!
- threat
- 1.Kb3?
- Keys
- 1.Qf3!
- 1...Rxe4+
- 2.Qxe4#
- 1...Rxf3
- 2.Sd6#
- 1...Rxf7
- 2.Qxf7#
- 1...Rg4
- 2.Rfe7#
- 1...Rh4
- 2.Rfe7#
- 1...Rf5
- 2.Sd6#
- 1...Rf6
- 2.Sxf6#
- 1...Rxe4+
- 1.Qf3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- R(a);CHECK,OGATE,P_SPINR(a),XS(C)::QAR(A),XR(a)
- Tries
- Try
- K(B);N_SPINS(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,P_SPINR(a),XS(C)::QAR(A),XR(a)
- Refutation
- R(a);XR(E)
- Try
- K(B);N_SPINS(C),P-FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,P_SPINR(a),XS(C)::QAR(A),XR(a)
- Refutation
- R(a);XR(E)
- Try
- K(B);N_SPINS(C),S_FLIGHT
- Threat
- DUALS(2)
- Vars
- R(a);OGATE,P_SPINR(a),XS(C)::QAR(A),XR(a)
- Refutation
- R(a);XR(E)
- Try
- Q(A);
- Vars
- R(a);N_PINS(C),XQ(A)::S(C)
- R(a);N_PINS(C),OGATE,XR(E)::QAB1(A),XR(a)
- R(a);::R1(E)
- R(a);N_PINS(C)::S(C)
- R(a);N_PINS(C)::S(C),XR(a)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Q(A);N_SPINS(C)
- Threat
- DUALS(4)
- Vars
- R(a);OGATE,P_PINQ(A),XS(C)::QAR(A),XR(a)
- Refutation
- R(a);XR(E)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(a);N_PINS(C),XR(E)::QAR2(A)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(a);N_PINS(C),XR(E)::QAR1(A)
- Refutation
- R(a);CHECK,XS(C)
- Try
- Q(A);
- Threat
- R1(D)
- Vars
- R(a);CHECK,OGATE,XS(C)::QAR(A),XR(a)
- Refutation
- R(a);N_PINS(C),XR(E)
- Try
- Actual
- Q(A);
- Vars
- R(a);CHECK,OGATE,XS(C)::QAR(A),XR(a)
- R(a);N_PINS(C),XQ(A)::S(C)
- R(a);N_PINS(C),OGATE,XR(E)::QAB1(A),XR(a)
- R(a);::R1(E)
- R(a);N_PINS(C)::S(C)
- R(a);N_PINS(C)::S(C),XR(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).