MESON Chess Problem Database
Problem Display
PID: 141455 (3R2bK/1r2PpQn/7N/1pp5/B1k1pP2/P1N4R/P2p3p/3q3r w - - 0 1)
Witt, Andreas
Die Schwalbe, 2010
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Bb3#
- 1...Qb3
- 2.Bxb3#
- 2.axb3#
- 1...Qf3
- 2.Bb3#
- 1...Qg4
- 2.Bb3#
- 1...Qh5
- 2.Bb3#
- 1...Qa1
- 2.Bb3#
- 1...Qc1
- 2.Bb3#
- 1...Qe1
- 2.Bb3#
- 1...Qf1
- 2.Bb3#
- 1...Qg1
- 2.Bb3#
- 1...Ra7
- 2.Bxb5#
- 1...Rc7
- 2.Bxb5#
- 1...Rd7
- 2.Bxb5#
- 1...Rxe7
- 2.Bxb5#
- 1...f5
- 2.Qxg8#
- 1...f6
- 2.Qxg8#
- 1...Qe2
- Tries
- 1.Sxd1?
- threat
- 2.Sb2#
- 2.Se3#
- 2.Bb3#
- 2.Rc3#
- 2.Qc3#
- 1...Rxd1
- 2.Bb3#
- 2.Rc3#
- 2.Qc3#
- 1...Rd7
- 2.Bb3#
- 1...Re1
- 2.Sb2#
- 2.Bb3#
- 2.Rc3#
- 2.Qc3#
- 1...Sf6
- 2.Sb2#
- 2.Bb3#
- 2.Rc3#
- 1...e3
- 2.Sb2#
- 2.Sxe3#
- 2.Bb3#
- 2.Qc3#
- 1...b4
- 2.Sb2#
- 2.Se3#
- 1...f6
- 2.Sb2#
- 2.Bb3#
- 2.Rc3#
- 2.Qxg8#
- 1...bxa4!
- threat
- 1.Sf5?
- threat
- 2.Se3#
- 2.Sd6#
- 1...Qe2
- 2.Sd6#
- 2.Bb3#
- 1...Qf3
- 2.Bb3#
- 1...Qe1
- 2.Sd6#
- 2.Bb3#
- 1...Qg1
- 2.Sd6#
- 2.Bb3#
- 1...Re1
- 2.Sd6#
- 1...Rb6
- 2.Se3#
- 1...Rd7
- 2.Bxb5#
- 1...e3
- 2.Sxe3#
- 1...f6
- 2.Qxg8#
- 1...Sf6!
- threat
- 1.Sxf7?
- threat
- 2.Se5#
- 2.Sd6#
- 1...Rxe7
- 2.Sd6#
- 2.Bxb5#
- 1...Bxf7
- 2.Qxf7#
- 1...Qf3
- 2.Bb3#
- 1...Qh5
- 2.Sd6#
- 2.Bb3#
- 1...Rb6
- 2.Se5#
- 1...Rd7
- 2.Bxb5#
- 1...Sf6
- 2.Se5#
- 1...e3!
- threat
- 1.Bxd1?
- threat
- 2.Be2#
- 2.Bb3#
- 1...Re1
- 2.Bb3#
- 1...Rd7
- 2.Bb3#
- 1...Rxd1!
- threat
- 1.Sxd1?
- Keys
- 1.Sg4!
- threat
- 2.Se3#
- 2.Se5#
- 1...Qxg4
- 2.Bb3#
- 1...Rxe7
- 2.Se3#
- 2.Bxb5#
- 1...Qe2
- 2.Se5#
- 2.Bb3#
- 1...Qf3
- 2.Bb3#
- 1...Qe1
- 2.Se5#
- 2.Bb3#
- 1...Qg1
- 2.Se5#
- 2.Bb3#
- 1...Re1
- 2.Se5#
- 1...Rd7
- 2.Bxb5#
- 1...Sf6
- 2.Se5#
- 1...e3
- 2.Sxe3#
- 1...f6
- 2.Qxg8#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(a);N_GUARD::B(E)
- R(i);N_GUARD::B(E),XP(g)
- R(i);N_GUARD,XP(H)::B(E),XP(g)
- P(j);OGATEB::QAB(I),XB(l)
- Tries
- Try
- S(C);XQ(a)
- Threat
- DUALS(5)
- Vars
- R(i);::B(E)
- Refutation
- P(g);XB(E)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD::B(E)
- R(b);::S(G)
- R(i);::S(G)
- R(i);N_GUARD::B(E),XP(g)
- P(f);::S(G),XP(f)
- P(j);OGATEB::QAB(I),XB(l)
- Refutation
- S(k);
- Try
- S(G);XP(j)
- Threat
- DUALS(2)
- Vars
- B(l);OGATE,XS(G)::QAB(I),XB(l)
- Q(a);N_GUARD::B(E)
- R(i);::S(G)
- R(i);N_GUARD::B(E),XP(g)
- S(k);::S(G)
- Refutation
- P(f);
- Try
- B(E);XQ(a)
- Threat
- DUALS(2)
- Vars
- R(b);::B(E)
- R(i);::B(E)
- Refutation
- R(b);XB(E)
- Try
- Actual
- S(G);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XS(G)::B(E)
- Q(a);N_GUARD::B(E)
- R(b);::S(G)
- R(i);N_GUARD::B(E),XP(g)
- S(k);::S(G)
- P(f);::S(G),XP(f)
- P(j);OGATEB::QAB(I),XB(l)
Developed and maintained by Brian Stephenson.
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