MESON Chess Problem Database
Problem Display
PID: 183007 (5b1Q/p1K1Pp2/rB1p4/3k1P2/1ppN4/3nR3/7n/3B4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Boletim da UBP, 1990
#2
8 + 10
SOLUTION
- SOUND
- Sets
- 1...Bh6
- 2.Qa8#
- 1...Bxe7
- 2.Qa8#
- 1...Bg7
- 2.Qa8#
- 1...Sf1
- 2.Bf3#
- 2.Qh1#
- 1...Sf3
- 2.Bxf3#
- 1...Sg4
- 2.Bf3#
- 2.Qh1#
- 1...c3
- 2.Bb3#
- 1...f6
- 2.Qg8#
- 1...Bh6
- Tries
- 1.Se2?
- threat
- 2.Qd4#
- 1...Bg7
- 2.Qa8#
- 1...Se5
- 2.Sf4#
- 1...f6
- 2.Qg8#
- 1...Sf3!
- threat
- 1.Sb3?
- threat
- 2.Qd4#
- 1...Bg7
- 2.Qa8#
- 1...Sf3
- 2.Bxf3#
- 1...f6
- 2.Qg8#
- 1...Se5!
- threat
- 1.Sf3?
- threat
- 2.Qd4#
- 1...Sxf3
- 2.Bxf3#
- 1...Bg7
- 2.Qa8#
- 1...f6
- 2.Qg8#
- 1...Se5!
- threat
- 1.Sb5?
- threat
- 2.Qd4#
- 1...Bg7
- 2.Qa8#
- 1...Sf3
- 2.Bxf3#
- 1...f6
- 2.Qg8#
- 1...Se5!
- threat
- 1.Sc6?
- threat
- 2.Qd4#
- 1...Se5
- 2.Sxb4#
- 1...Sf3
- 2.Bxf3#
- 1...f6
- 2.Qg8#
- 1...Bg7!
- threat
- 1.Se6?
- threat
- 2.Qd4#
- 1...Se5
- 2.Sf4#
- 1...Bg7
- 2.Qa8#
- 1...Sf3
- 2.Bxf3#
- 1...f6!
- threat
- 1.Qf6?
- threat
- 2.Qxd6#
- 2.Qxf7#
- 1...Bxe7
- 2.Qxf7#
- 1...axb6
- 2.Qxd6#
- 1...c3
- 2.Bb3#
- 2.Qxf7#
- 1...Se5
- 2.Qxd6#
- 1...Sf4
- 2.Qxd6#
- 1...Sc5
- 2.Qxd6#
- 1...Rxb6!
- threat
- 1.exf8Q?
- threat
- 2.Qxd6#
- 2.Qxf7#
- 2.Qa8#
- 1...axb6
- 2.Qxd6#
- 1...c3
- 2.Bb3#
- 2.Qxf7#
- 1...Se5
- 2.Qxd6#
- 1...Sf4
- 2.Qxd6#
- 2.Qa8#
- 1...Sc5
- 2.Qxd6#
- 1...f6
- 2.Qxd6#
- 2.Qf7#
- 2.Qa8#
- 2.Qfg8#
- 2.Qhg8#
- 1...Rxb6!
- threat
- 1.e8Q?
- threat
- 2.Qc6#
- 2.Qxf7#
- 2.Qe4#
- 2.Qa8#
- 1...axb6
- 2.Qc6#
- 1...c3
- 2.Bb3#
- 2.Qc6#
- 2.Qxf7#
- 1...Se5
- 2.Qb5#
- 1...Be7
- 2.Qc6#
- 2.Qxf7#
- 2.Qa8#
- 1...Sf2
- 2.Qb5#
- 2.Qc6#
- 2.Qxf7#
- 2.Qa8#
- 1...Sf4
- 2.Qb5#
- 2.Qc6#
- 2.Qe4#
- 2.Qa8#
- 1...Sc5
- 2.Qc6#
- 1...f6
- 2.Qc6#
- 2.Qf7#
- 2.Qe4#
- 2.Qe6#
- 2.Qa8#
- 2.Qg8#
- 1...Rxb6!
- threat
- 1.Se2?
- Keys
- 1.Sc2!
- threat
- 2.Qd4#
- 1...Bg7
- 2.Qa8#
- 1...Sf3
- 2.Bxf3#
- 1...Se5
- 2.Sxb4#
- 1...f6
- 2.Qg8#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- B(j);OGATE::QAB(H)
- B(j);OGATE,XP(G)::QAB(H)
- S(a);N_GUARD::B(A),XS(a)
- P(d);OGATEB::B(A)
- P(i);OGATEB::QAB(H)
- Tries
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- B(j);OGATE::QAB(H)
- S(b);N_GUARD::S(C)
- P(i);OGATEB::QAB(H)
- Refutation
- S(a);
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- B(j);OGATE::QAB(H)
- S(a);N_GUARD::B(A),XS(a)
- P(i);OGATEB::QAB(H)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- S(a);OGATE,XS(C)::B(A),XS(a)
- B(j);OGATE::QAB(H)
- P(i);OGATEB::QAB(H)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- B(j);OGATE::QAB(H)
- S(a);N_GUARD::B(A),XS(a)
- P(i);OGATEB::QAB(H)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- S(b);N_GUARD::S(C),XP(c)
- S(a);N_GUARD::B(A),XS(a)
- P(i);OGATEB::QAB(H)
- Refutation
- B(j);
- Try
- S(C);
- Threat
- QAR1(H)
- Vars
- S(b);N_GUARD::S(C)
- B(j);OGATE::QAB(H)
- S(a);N_GUARD::B(A),XS(a)
- Refutation
- P(i);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- B(j);XP(G)::QAB(H),XP(i)
- P(h);XB(E)::QAR1(H),XP(g)
- S(b);::QAR1(H),XP(g)
- Refutation
- R(f);XB(E)
- Try
- P(G);XB(j)
- Threat
- DUALS(3)
- Vars
- P(h);XB(E)::QAR1(G),XP(g)
- S(b);::QAR1(G),XP(g)
- Refutation
- R(f);XB(E)
- Try
- P(G);
- Threat
- DUALS(4)
- Vars
- P(h);XB(E)::QAB1(G)
- S(b);N_GUARD::QAR2(G)
- S(b);::QAB1(G)
- Refutation
- R(f);XB(E)
- Try
- Actual
- S(C);
- Threat
- QAR1(H)
- Vars
- B(j);OGATE::QAB(H)
- S(a);N_GUARD::B(A),XS(a)
- S(b);N_GUARD::S(C),XP(c)
- P(i);OGATEB::QAB(H)
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