MESON Chess Problem Database
Problem Display
PID: 38867 (N1K5/3pQ3/n7/kP1R4/b2N4/1p6/1P6/8 w - - 0 1)
Nielsen, Kristian
1st HM., BCF 019. Ty., 1935-1936
#2
7 + 5
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Bxb5
- 2.Qa3#
- 1...Sb4
- 2.Qd8#
- 1...Sc5
- 2.Qe1#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Bxb5
- Tries
- 1.Kb7?
- 1...Bxb5
- 2.Qa3#
- 1...d6
- 2.Sc6#
- 1...Sb4
- 2.Qd8#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...Sc5+!
- 1...Bxb5
- 1.Kd8?
- 1...Bxb5
- 2.Qa3#
- 1...Sc5
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...Sb4!
- 1...Bxb5
- 1.Rf5?
- 1...Bxb5
- 2.Qa3#
- 1...Sc5
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Sb4
- 2.Qd8#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d5!
- 1...Bxb5
- 1.Rg5?
- 1...Bxb5
- 2.Qa3#
- 1...Sc5
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Sb4
- 2.Qd8#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d5!
- 1...Bxb5
- 1.Rh5?
- 1...Bxb5
- 2.Qa3#
- 1...Sc5
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Sb4
- 2.Qd8#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d5!
- 1...Bxb5
- 1.Rxd7?
- 1...Sc5
- 2.Qe1#
- 1...Sb4
- 2.Qd8#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...Bxb5!
- 1...Sc5
- 1.Qc5?
- 1...Bxb5
- 2.Qa3#
- 2.Qxb5#
- 1...Sb4
- 2.Qb6#
- 2.Qc7#
- 1...Sc7
- 2.Qc3#
- 1...Sb8
- 2.Qc3#
- 1...d6
- 2.Sc6#
- 1...Sxc5!
- 1...Bxb5
- 1.Qe4?
- 1...Kb4
- 2.Sc6#
- 1...Bxb5
- 2.Sxb3#
- 1...Sc5
- 2.Qe1#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Sb4!
- 1...Kb4
- 1.bxa6+?
- 1...Bb5
- 2.Qa3#
- 1...Kxa6!
- 1...Bb5
- 1.b6+?
- 1...Bb5
- 2.Qa3#
- 1...Sc5!
- 1...Bb5
- 1.Kb7?
- Keys
- 1.Qh4!
- 1...Kb4
- 2.Sc6#
- 1...Bxb5
- 2.Sxb3#
- 1...Sb4
- 2.Qd8#
- 1...Sc5
- 2.Qe1#
- 1...Sc7
- 2.Qe1#
- 1...Sb8
- 2.Qe1#
- 1...d6
- 2.Sc6#
- 1...Kb4
- 1.Qh4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- S(d);N_GUARD,SBLOCK::QAB(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- P(e);N_GUARD::S(B)
- S(d);N_GUARD,SBLOCK::QAB(E)
- S(d);N_GUARD::QAB(E)
- Refutation
- S(d);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- Refutation
- S(d);
- Try
- R(D);
- Vars
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- S(d);N_GUARD,SBLOCK::QAB(E)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- S(d);N_GUARD,SBLOCK::QAB(E)
- Refutation
- P(e);
- Try
- R(D);
- Vars
- B(b);OGATEB,P_SPINB(b),XP(C)::QAR2(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- S(d);N_GUARD,SBLOCK::QAB(E)
- Refutation
- P(e);
- Try
- R(D);XP(e)
- Vars
- S(d);N_GUARD::QAB(E)
- S(d);N_GUARD,SBLOCK::QAB(E)
- Refutation
- B(b);XP(C)
- Try
- Q(E);
- Vars
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- Refutation
- S(d);XQ(E)
- Try
- Q(E);
- Vars
- K(c);S_FLIGHT::QAR(E)+S(B),DCHECK
- B(b);N_GUARD,P_SPINB(b),XP(C)::S(B),XP(a)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
- Refutation
- S(d);
- Try
- P(C);CHECK,XS(d)
- Vars
- B(b);P_SPINB(b)::QAR2(E)
- Refutation
- K(c);P-FLIGHT,XP(C)
- Try
- P(C);CHECK
- Vars
- B(b);P_SPINB(b),S_CUTS(d)::QAR2(E)
- Refutation
- S(d);P_SPINS(d)
- Try
- Actual
- Q(E);
- Vars
- K(c);S_FLIGHT::QAR(E)+S(B),DCHECK
- B(b);N_GUARD,P_SPINB(b),XP(C)::S(B),XP(a)
- S(d);N_GUARD,SBLOCK::QAB(E)
- S(d);N_GUARD::QAB(E)
- P(e);N_GUARD::S(B)
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).