MESON Chess Problem Database
Problem Display
PID: 140806 (2Q2K2/1p1Np3/1p2k3/8/6p1/3N2p1/6n1/1B1R4 w - - 0 1)
Knudsen-Navdal, Solveig
1st Comm., Problemisten, 1949
#2
6 + 7
| 114 | Springaren | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kd5
- Tries
- 1.Kg7?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Ke8?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Kg8?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se1
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Sxb6+?
- 1...Kd6
- 2.Qd7#
- 1...Kf6!
- 1...Kd6
- 1.Sf6+?
- 1...Kd6
- 2.Qd7#
- 1...Kxf6!
- 1...Kd6
- 1.Ba2+?
- 1...Kd6
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sb4#
- 2.Sf4#
- 2.S3c5#
- 2.S3e5#
- 1...Kf5!
- 1...Kd6
- 1.Bc2?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Rd2?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Qxb7?
- 1...Kd6
- 2.Sf4#
- 2.S3c5#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd6
- 1.Qc2?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 1...Kxd7
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Qc3?
- 1...Kd5
- 2.Sf4#
- 1...Kd6
- 2.Sf4#
- 1...Kxd7
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Qc4+?
- 1...Kd6
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sb4#
- 2.Sf4#
- 2.S3e5#
- 1...Kxd7
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sb4#
- 2.Sf4#
- 2.Se5#
- 1...Kf5!
- 1...Kd6
- 1.Qc5?
- 1...Kxd7
- 2.Sf4#
- 1...bxc5
- 2.S3xc5#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5!
- 1...Kxd7
- 1.Qc7?
- 1...Kd5
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kf5!
- 1...Kd5
- 1.Kg7?
- Keys
- 1.Qc1!
- 1...Kd5
- 2.Sf4#
- 1...Kf5
- 2.S3c5#
- 1...Kd6
- 2.Sf4#
- 1...Kxd7
- 2.Sf4#
- 1...Se3
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sh4
- 2.Sf4#
- 1...b5
- 2.S3c5#
- 1...Kd5
- 1.Qc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- K(F);P-FLIGHT
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- K(F);P-FLIGHT
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- S(D);CHECK,XP(d)
- Vars
- K(e);P-FLIGHT::QAR1(E)
- Refutation
- K(e);P-FLIGHT
- Try
- S(D);CHECK
- Vars
- K(e);P-FLIGHT::QAR1(E)
- Refutation
- K(e);P-FLIGHT,XS(D)
- Try
- B(A);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- B(A);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- R(B);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);XP(f)
- Vars
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- K(e);P-FLIGHT::R(B)+S(C)
- K(e);S_FLIGHT,XS(D)::R(B)+S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- K(e);P-FLIGHT::R(B)+S(C)
- K(e);S_FLIGHT,XS(D)::R(B)+S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);CHECK
- Refutation
- K(e);S_FLIGHT
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT,XS(D)::R(B)+S(C)
- P(d);XQ(E)::S(C),XP(d)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- P(d);
- Try
- Q(E);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- Q(E);
- Vars
- K(e);S_FLIGHT::R(B)+S(C),DCHECK
- K(e);S_FLIGHT::B(A)+S(C)
- K(e);P-FLIGHT::R(B)+S(C)
- K(e);S_FLIGHT,XS(D)::R(B)+S(C)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- P(d);N_GUARD::S(C)
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