MESON Chess Problem Database
Problem Display
PID: 52289 (3bb3/Kp1Bp3/5Q2/2kN2p1/R1PN4/Pp2nn2/q6r/3R4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
1st Prize, Reiners MT, 1989-1990
#2
9 + 11
| 4827 | FIDE Album (1989-1991) | 1997 |
| 5559 | ECSC | 2012 |
| 702 | Phenix | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Sxb3#
- 1...Qd2
- 2.Sxb3#
- 1...Qe2
- 2.Sxb3#
- 1...Qf2
- 2.Sxb3#
- 1...Qg2
- 2.Sxb3#
- 1...Ba5
- 2.Qxe7#
- 1...Bb6+
- 2.Qxb6#
- 1...b5
- 2.Qc6#
- 1...b6
- 2.Qc6#
- 1...Qa1
- Tries
- 1.Sc3?
- threat
- 2.Se4#
- 2.Se6#
- 1...Bb6+
- 2.Qxb6#
- 1...Bxd7
- 2.Se4#
- 1...Sxd1
- 2.Se4#
- 1...Sxc4
- 2.Se6#
- 1...Sxd4
- 2.Se4#
- 2.Qxd4#
- 1...e6
- 2.Se4#
- 2.Sxe6#
- 1...Qb1
- 2.Se6#
- 1...Qc2
- 2.Se6#
- 1...Qd2
- 2.Se4#
- 2.Sxb3#
- 1...Rd2
- 2.Se4#
- 1...Rh4
- 2.Se6#
- 1...Bg6
- 2.Se6#
- 1...Bf7
- 2.Se4#
- 1...Sd5
- 2.Se4#
- 1...Sd2!
- threat
- 1.Sf4?
- threat
- 2.Sde6#
- 2.Sd3#
- 1...Bb6+
- 2.Qxb6#
- 1...Bxd7
- 2.Sd3#
- 1...Sxd1
- 2.Sd3#
- 1...Sxc4
- 2.Sde6#
- 1...Sxd4
- 2.Sd3#
- 2.Qxd4#
- 1...gxf4
- 2.Se6#
- 1...exf6
- 2.Sde6#
- 1...e6
- 2.Sdxe6#
- 1...Qb1
- 2.Sde6#
- 1...Qc2
- 2.Sde6#
- 1...Qd2
- 2.Sxb3#
- 1...Qe2
- 2.Sxb3#
- 2.Sde6#
- 1...Bg6
- 2.Sde6#
- 1...Bf7
- 2.Sd3#
- 1...Sd5
- 2.Sd3#
- 1...Se1
- 2.Sde6#
- 1...Sd2
- 2.Sd3#
- 1...Se5
- 2.Sde6#
- 1...e5
- 2.Sde6#
- 1...Rd2!
- threat
- 1.Sc7?
- threat
- 2.Sde6#
- 2.Qb6#
- 1...Bxc7
- 2.Se6#
- 1...Bxd7
- 2.Qb6#
- 1...Sxd1
- 2.Qb6#
- 1...Sxc4
- 2.Sde6#
- 1...Sxd4
- 2.Qxd4#
- 2.Qb6#
- 1...exf6
- 2.Sde6#
- 1...e6
- 2.Sdxe6#
- 1...Rd2
- 2.Qb6#
- 1...Qd2
- 2.Sxb3#
- 2.Qb6#
- 1...Rh6
- 2.Sde6#
- 1...Bf7
- 2.Qb6#
- 1...Sd2
- 2.Qb6#
- 1...b6
- 2.Sde6#
- 2.Sa6#
- 2.Qxb6#
- 2.Qc6#
- 1...Sd5!
- threat
- 1.Qd6+?
- 1...exd6
- 2.Se6#
- 1...Kxd6!
- 1...exd6
- 1.Sc3?
- Keys
- 1.Sb6!
- threat
- 2.Se6#
- 2.Ra5#
- 1...Bxb6+
- 2.Qxb6#
- 1...Qxa3
- 2.Se6#
- 1...Bxd7
- 2.Sxd7#
- 1...Sxd1
- 2.Ra5#
- 1...Sxc4
- 2.Se6#
- 2.Rxc4#
- 1...Sxd4
- 2.Qxd4#
- 1...exf6
- 2.Se6#
- 1...e6
- 2.Sxe6#
- 1...Rd2
- 2.Ra5#
- 1...Qd2
- 2.Sxb3#
- 1...Bf7
- 2.Ra5#
- 1...Sd5
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- threat
- 1.Sb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 10
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::S(E),XP(c)
- B(j);N_GUARD::QAB(G),XP(i)
- B(j);CHECK,N_GUARD::QAB1(G),XB(j)
- P(h);N_GUARD::QAR1(G)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,N_GUARD::QAB1(G),XB(j)
- B(k);XB(I)::S(F)
- S(d);XR(A)::S(F)
- S(d);XP(D)::S(E)
- Q(a);::S(E)
- R(b);::S(F)
- R(b);::S(E)
- B(k);::S(E)
- B(k);::S(F)
- S(d);::S(F)
- Refutation
- S(e);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,N_GUARD::QAB1(G),XB(j)
- B(k);XB(I)::S(F)
- S(d);XR(A)::S(F)
- S(d);XP(D)::S(E)
- P(g);XS(F)::S(E)
- P(i);XQ(G)::S(E)
- P(i);::S(E),XP(i)
- Q(a);::S(E)
- Q(a);N_GUARD::S(E),XP(c)
- B(k);::S(E)
- B(k);::S(F)
- S(d);::S(F)
- S(e);::S(E)
- S(e);::S(F)
- P(i);::S(E)
- Refutation
- R(b);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(j);XS(F)::S(E)
- B(k);XB(I)::QAB1(G)
- S(d);XR(A)::QAB1(G)
- S(d);XP(D)::S(E)
- P(i);XQ(G)::S(E)
- P(i);::S(E),XP(i)
- R(b);::QAB1(G)
- R(b);::S(E)
- B(k);::QAB1(G)
- S(e);::QAB1(G)
- Refutation
- S(d);
- Try
- Q(G);CHECK
- Vars
- P(i);SBLOCK,XQ(G)::S(E)
- Refutation
- K(f);S_FLIGHT,XQ(G)
- Try
- Actual
- S(F);
- Threat
- DUALS(2)
- Vars
- B(j);CHECK,OGATE,XS(F)::QAB1(G),XB(j)
- Q(a);P_PINR(C),XP(B)::S(E)
- B(k);XB(I)::S(F),XB(k)
- S(d);XR(A)::R(C)
- S(e);OGATE,XS(E)::QAB1(G),XS(e)
- P(i);XQ(G)::S(E)
- P(i);::S(E),XP(i)
- R(b);::R(C)
- Q(a);N_GUARD::S(E),XP(c)
- B(k);::R(C)
- S(d);::R(C)
- S(e);::R(C)
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