MESON Chess Problem Database
Problem Display
PID: 16956 (3NK3/8/qp2R3/1k6/1P5R/1P1n1p1r/N3P3/3n1BBb w - - 0 1)
Valve, Leo Erland
3rd Prize, Schackvarlden, 1944
#2
10 + 8
| 3098 | FIDE Album (1914-1944) (I) | 1971 |
| 422 | Suomen Tehtavaniekat | 1991 |
SOLUTION
- SOUND
- Sets
- 1...Qc8
- 2.Rxb6#
- 1...Qxa2
- 2.Rxb6#
- 1...Qa3
- 2.Rxb6#
- 1...Qa4
- 2.Rxb6#
- 1...Qa8
- 2.Rxb6#
- 1...S1b2
- 2.Sc3#
- 1...S1f2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...Sc1
- 2.Re5#
- 1...Se1
- 2.Re5#
- 1...S3b2
- 2.Re5#
- 1...S3f2
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Qc8
- Tries
- 1.Rh5+?
- 1...Sc5
- 2.exf3#
- 2.e3#
- 2.e4#
- 1...Se5
- 2.Rhxe5#
- 2.Rexe5#
- 2.exf3#
- 2.e3#
- 2.e4#
- 1...Rxh5!
- 1...Sc5
- 1.Re5+?
- 1...Sc5
- 2.exf3#
- 2.e3#
- 2.e4#
- 1...Sxe5!
- 1...Sc5
- 1.exd3?
- threat
- 2.Re5#
- 2.d4#
- 1...Qxa2
- 2.Rxb6#
- 1...Qb7
- 2.d4#
- 1...Qc8
- 2.Rxb6#
- 1...Qa3
- 2.Rxb6#
- 2.d4#
- 1...Qa4
- 2.Rxb6#
- 2.d4#
- 1...Qa5
- 2.d4#
- 1...Qa7
- 2.d4#
- 1...Qa8
- 2.Rxb6#
- 2.d4#
- 1...Rh2
- 2.Re5#
- 1...Bg2
- 2.Re5#
- 1...Sb2
- 2.Sc3#
- 2.Re5#
- 1...Sf2
- 2.Sc3#
- 2.Re5#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...f2!
- threat
- 1.e3?
- threat
- 2.Bxd3#
- 2.Re5#
- 1...Qxa2
- 2.Bxd3#
- 1...Rxh4
- 2.Re5#
- 1...Sxe3
- 2.Sc3#
- 1...Qb7
- 2.Bxd3#
- 1...Qa3
- 2.Bxd3#
- 1...Qa4
- 2.Bxd3#
- 1...Qa5
- 2.Bxd3#
- 1...Qa7
- 2.Bxd3#
- 1...Qa8
- 2.Bxd3#
- 1...Sb2
- 2.Sc3#
- 2.Re5#
- 1...Sf2
- 2.Sc3#
- 2.Re5#
- 1...Sc3
- 2.Sxc3#
- 2.Bxd3#
- 1...f2
- 2.Bxd3#
- 1...Qc8!
- threat
- 1.e4?
- threat
- 2.Bxd3#
- 2.Re5#
- 1...Qxa2
- 2.Rxb6#
- 1...Qb7
- 2.Bxd3#
- 1...Qc8
- 2.Rxb6#
- 1...Qa3
- 2.Bxd3#
- 2.Rxb6#
- 1...Qa4
- 2.Bxd3#
- 2.Rxb6#
- 1...Qa5
- 2.Bxd3#
- 1...Qa7
- 2.Bxd3#
- 1...Qa8
- 2.Bxd3#
- 2.Rxb6#
- 1...Sb2
- 2.Re5#
- 1...Sf2
- 2.Re5#
- 1...Sc3
- 2.Bxd3#
- 1...f2
- 2.Re5#
- 1...Se3!
- threat
- 1.Rh5+?
- Keys
- 1.exf3!
- threat
- 2.Bxd3#
- 2.Re5#
- 1...Qxa2
- 2.Bxd3#
- 2.Rxb6#
- 1...Rxf3
- 2.Re5#
- 1...Rxh4
- 2.Re5#
- 1...Bxf3
- 2.Bxd3#
- 1...Qb7
- 2.Bxd3#
- 1...Qc8
- 2.Rxb6#
- 1...Qa3
- 2.Bxd3#
- 2.Rxb6#
- 1...Qa4
- 2.Bxd3#
- 2.Rxb6#
- 1...Qa5
- 2.Bxd3#
- 1...Qa7
- 2.Bxd3#
- 1...Qa8
- 2.Bxd3#
- 2.Rxb6#
- 1...Sb2
- 2.Sc3#
- 2.Re5#
- 1...Sf2
- 2.Sc3#
- 2.Re5#
- 1...Sc3
- 2.Sxc3#
- 2.Bxd3#
- 1...Se3
- 2.Sc3#
- threat
- 1.exf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 12
- Sets
- Q(g);N_GUARD,P_PINS(I)::R1(H),XP(h)
- Q(g);N_GUARD,XS(C)::R1(H),XP(h)
- Q(g);N_GUARD::R1(H),XP(h)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(c);N_GUARD::R(H)
- S(c);N_GUARD::R(H),XS(c)
- Tries
- Try
- R(G);CHECK
- Refutation
- R(e);XR(G)
- Try
- R(H);CHECK
- Refutation
- S(c);XR(H)
- Try
- P(D);XS(c)
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,XS(C)::R1(H),XP(h)
- Q(g);::B(A)+P(D)
- Q(g);N_GUARD,P_PINS(I)::R1(H),XP(h)
- R(e);::R(H)
- B(b);::R(H)
- S(a);N_GUARD::S(C),XS(a)
- S(a);N_GUARD::S(C)
- Refutation
- P(d);
- Try
- P(D);P_PINS(c)
- Threat
- DUALS(2)
- Vars
- Q(g);XS(C)::B(A),XS(c)
- R(e);XR(G)::R(H)
- S(a);N_GUARD,XP(D)::S(C)
- Q(g);::B(A),XS(c)
- Q(g);P_PINS(I)::B(A),XS(c)
- P(d);::B(A),XS(c)
- Refutation
- Q(g);P_PINS(I)
- Try
- P(D);P_PINS(c)
- Threat
- DUALS(2)
- Vars
- Q(g);N_GUARD,XS(C)::R1(H),XP(h)
- Q(g);::B(A),XS(c)
- Q(g);N_GUARD,P_PINS(I)::R1(H),XP(h)
- S(a);::R(H)
- S(a);::B(A),XS(c)
- P(d);::R(H)
- Refutation
- S(a);
- Try
- Actual
- P(D);P_PINS(c),XP(d)
- Threat
- DUALS(2)
- Vars
- R(e);XP(D)::R(H)
- R(e);XR(G)::R(H)
- B(b);XP(D)::B(A),XS(c)
- Q(g);::B(A),XS(c)
- Q(g);N_GUARD,P_PINS(I)::R1(H),XP(h)
- S(a);N_GUARD::S(C)
Developed and maintained by Brian Stephenson.
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