MESON Chess Problem Database
Problem Display
PID: 82363 (1b1Q4/5r1r/1Pp5/2kb1N2/2Npp3/PR5p/1K1B4/5B2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Sachsische Zeitung, 1995
#2
9 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc7
- 2.Qd6#
- 1...Bxc4
- 2.Qxd4#
- 1...Be6
- 2.Qxd4#
- 1...Bd6
- 2.Qxd6#
- 1...Ba7
- 2.Qd6#
- 1...Rc7
- Tries
- 1.Se5?
- threat
- 2.Bb4#
- 1...Rc7
- 2.Qd6#
- 1...Bc4
- 2.Qxd4#
- 1...d3
- 2.Be3#
- 1...Bc7!
- threat
- 1.Scd6?
- threat
- 2.Bb4#
- 1...Bxb3
- 2.Sxe4#
- 1...Bc4
- 2.Sxe4#
- 1...Be6
- 2.Sxe4#
- 1...Bc7
- 2.Sb7#
- 1...Rc7!
- threat
- 1.Sfd6?
- threat
- 2.Bb4#
- 1...Bxc4
- 2.Sxe4#
- 1...Bxd6
- 2.Qxd6#
- 1...Be6
- 2.Sxe4#
- 1...d3
- 2.Be3#
- 1...Rf2!
- threat
- 1.Qe7+?
- 1...Bd6
- 2.Qxd6#
- 1...Rxe7!
- 1...Bd6
- 1.Se5?
- Keys
- 1.Sa5!
- threat
- 2.Bb4#
- 1...Rc7
- 2.Qd6#
- 1...Bc4
- 2.Qxd4#
- 1...Bc7
- 2.Sb7#
- 1...d3
- 2.Be3#
- threat
- 1.Sa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(g);S_CUTB(i)::QAB1(I)
- B(e);OGATE,XS(F)::QAB1(I),XP(b)
- B(e);OGATE::QAB1(I),XP(b)
- B(i);N_GUARD::QAB1(I),XB(i)
- B(i);N_GUARD::QAB1(I)
- Tries
- Try
- S(F);
- Threat
- B(C)
- Vars
- R(g);S_CUTB(i)::QAB1(I)
- B(e);OGATE::QAB1(I),XP(b)
- P(b);OGATEB::B(C)
- Refutation
- B(i);
- Try
- S(F);
- Threat
- B(C)
- Vars
- B(e);N_GUARD,XR(E)::S(F),XP(c)
- B(e);N_GUARD::S(F),XP(c)
- B(i);S_CUTR(g)::S(F)
- Refutation
- R(g);
- Try
- S(G);
- Threat
- B(C)
- Vars
- B(e);N_GUARD,XS(F)::S(G),XP(c)
- B(i);OGATE,XS(G)::QAB1(I),XB(i)
- B(e);N_GUARD::S(G),XP(c)
- P(b);OGATEB::B(C)
- Refutation
- R(g);P_PINB(C)
- Try
- Q(I);CHECK
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB1(I),XB(i)
- Refutation
- R(g);XQ(I)
- Try
- Actual
- S(F);
- Threat
- B(C)
- Vars
- R(g);S_CUTB(i)::QAB1(I)
- B(e);OGATE::QAB1(I),XP(b)
- B(i);S_CUTR(g)::S(F)
- P(b);OGATEB::B(C)
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