MESON Chess Problem Database
Problem Display
PID: 82179 (2B1q2B/N1b3r1/1p2p3/2p5/n1k4r/KpN2Q2/5p2/3R1b2 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Arbeiter Zeitung, 1975
#2
7 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb5
- 2.Bxe6#
- 1...Qf8
- 2.Bxe6#
- 1...Qxh8
- 2.Bxe6#
- 1...Bg2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Bh3
- 2.Qd3#
- 1...Qb5
- Tries
- 1.Sa2?
- threat
- 2.Qxb3#
- 1...bxa2
- 2.Qb3#
- 1...Bd3
- 2.Qxd3#
- 1...Qb5
- 2.Bxe6#
- 1...Rh3
- 2.Qe4#
- 1...Sc3
- 2.Qxc3#
- 1...b2
- 2.Qb3#
- 1...Rg3!
- threat
- 1.Se2?
- threat
- 2.Qxb3#
- 2.Qd3#
- 1...Bxe2
- 2.Qxb3#
- 1...Qb5
- 2.Bxe6#
- 2.Qd3#
- 1...Qg6
- 2.Qxb3#
- 1...Qd7
- 2.Qxb3#
- 1...Qd8
- 2.Qxb3#
- 1...Rh3
- 2.Qe4#
- 1...Rd4
- 2.Qxb3#
- 1...Rd7
- 2.Qxb3#
- 1...Sb2
- 2.Rc1#
- 2.Qxb3#
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 2.Qd3#
- 1...b2
- 2.Qb3#
- 2.Qd3#
- 1...Rg3!
- threat
- 1.Sxa4?
- threat
- 2.Sb2#
- 2.Qxb3#
- 2.Qc3#
- 1...Bd3
- 2.Qxd3#
- 1...Rg3
- 2.Sb2#
- 2.Rc1#
- 1...Qb5
- 2.Sb2#
- 2.Bxe6#
- 2.Qc3#
- 1...Rh3
- 2.Sb2#
- 2.Qe4#
- 1...Rd4
- 2.Sb2#
- 2.Rc1#
- 2.Qxb3#
- 1...Be5
- 2.Sxb6#
- 2.Qxb3#
- 1...b2
- 2.Sxb2#
- 2.Qb3#
- 2.Qc3#
- 1...Qxa4+!
- threat
- 1.Se4?
- threat
- 2.Qxb3#
- 1...Bd3
- 2.Qxd3#
- 1...Rg3
- 2.Sd2#
- 1...Qb5
- 2.Bxe6#
- 1...Sc3
- 2.Qxc3#
- 1...b2
- 2.Qb3#
- 1...Rh3!
- threat
- 1.Scb5?
- threat
- 2.Qxb3#
- 1...Qxb5
- 2.Bxe6#
- 1...Rh3
- 2.Qe4#
- 1...Bd3
- 2.Qxd3#
- 1...Sc3
- 2.Qxc3#
- 1...b2
- 2.Qb3#
- 1...Rg3!
- threat
- 1.Sd5?
- threat
- 2.Qxb3#
- 1...Bd3
- 2.Qxd3#
- 1...Rg3
- 2.Se3#
- 1...Rh3
- 2.Qe4#
- 1...Sc3
- 2.Se3#
- 2.Qxc3#
- 1...b2
- 2.Qb3#
- 1...Qb5!
- threat
- 1.Ba6+?
- 1...Qb5
- 2.Bxb5#
- 1...b5!
- 1...Qb5
- 1.Qd5+?
- 1...Kxc3
- 2.Rc1#
- 2.Qxb3#
- 1...exd5!
- 1...Kxc3
- 1.Sa2?
- Keys
- 1.Sb1!
- threat
- 2.Qxb3#
- 1...Bd3
- 2.Qxd3#
- 1...Qb5
- 2.Bxe6#
- 1...Rh3
- 2.Qe4#
- 1...Rg3
- 2.Sd2#
- 1...Sc3
- 2.Qxc3#
- 1...b2
- 2.Qb3#
- threat
- 1.Sb1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- Q(l);N_GUARD::B(F),XP(i)
- Q(l);N_GUARD,XB(G)::B(F),XP(i)
- B(a);N_GUARD::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- Tries
- Try
- S(C);
- Threat
- QAB1(D),XP(c)
- Vars
- P(c);XS(C)::QAB1(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- Q(l);N_GUARD::B(F),XP(i)
- R(f);N_GUARD::QAR2(D)
- S(d);N_GUARD::QAR1(D),XS(d)
- P(c);::QAB1(D)
- Refutation
- R(k);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- B(a);XS(C)::QAB1(D),XP(c)
- Q(l);::QAB1(D),XP(c)
- R(f);N_GUARD::QAR2(D)
- R(f);::QAB1(D),XP(c)
- R(k);::QAB1(D),XP(c)
- Refutation
- R(k);
- Try
- S(C);XS(d)
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- Refutation
- Q(l);CHECK,XS(C)
- Try
- S(C);
- Threat
- QAB1(D),XP(c)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- R(k);::S(C)
- Q(l);N_GUARD::B(F),XP(i)
- S(d);N_GUARD::QAR1(D),XS(d)
- P(c);::QAB1(D)
- Refutation
- R(f);
- Try
- S(C);
- Threat
- QAB1(D),XP(c)
- Vars
- Q(l);N_GUARD,XS(C)::B(F),XP(i)
- R(f);N_GUARD::QAR2(D)
- B(a);N_GUARD::QAB1(D),XB(a)
- S(d);N_GUARD::QAR1(D),XS(d)
- P(c);::QAB1(D)
- Refutation
- R(k);
- Try
- S(C);
- Threat
- QAB1(D),XP(c)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- R(k);::S(C)
- R(f);N_GUARD::QAR2(D)
- P(c);::QAB1(D)
- Refutation
- Q(l);
- Try
- B(F);CHECK
- Vars
- Q(l);N_GUARD,P_SPINQ(l)::B(F),XQ(l)
- Refutation
- P(h);P_SPINP(h)
- Try
- Q(D);CHECK
- Refutation
- P(i);XQ(D)
- Try
- Actual
- S(C);
- Threat
- QAB1(D),XP(c)
- Vars
- B(a);N_GUARD::QAB1(D),XB(a)
- Q(l);N_GUARD::B(F),XP(i)
- R(f);N_GUARD::QAR2(D)
- R(k);::S(C)
- S(d);N_GUARD::QAR1(D),XS(d)
- P(c);::QAB1(D)
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