MESON Chess Problem Database
Problem Display
PID: 182556 (b7/B7/4p3/1Q2p1K1/4k2N/5rp1/1nP3Bn/4bN2 w - - 0 1)
Preiswerk, Walther Edouard
Basler Nachrichten, 1944
#2
7 + 9
| 16108 | Walther Preiswerks Shachprobleme (M. Henneberger) | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Bd2+
- 2.Sxd2#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd1
- 2.Qd3#
- 2.Qc4#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sa4
- 2.Qd3#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sxf1
- 2.Bxf3#
- 1...Sg4
- 2.Bxf3#
- 1...Bd2+
- Tries
- 1.Sxf3?
- threat
- 2.S3d2#
- 2.S3xh2#
- 2.Qxe5#
- 1...Bd2+
- 2.S1xd2#
- 2.S3xd2#
- 1...Sxf1
- 2.Sxe1#
- 2.Sg1#
- 2.Sd2#
- 2.Sh2#
- 2.Sh4#
- 2.Sxe5#
- 2.Qxe5#
- 1...Bc3
- 2.Sxg3#
- 2.S3d2#
- 2.S3xh2#
- 1...Bd5
- 2.S3d2#
- 2.S3xh2#
- 2.Qe2#
- 1...Sd3
- 2.S3d2#
- 2.S3xh2#
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sc4
- 2.S3d2#
- 2.S3xh2#
- 2.Qxc4#
- 1...Sg4
- 2.Sxe1#
- 2.Sg1#
- 2.S3d2#
- 2.S3h2#
- 2.Sd4#
- 2.Sh4#
- 2.Sxe5#
- 1...Sxf3+!
- threat
- 1.Sf5?
- threat
- 2.Sd6#
- 1...Bd2+
- 2.Sxd2#
- 1...Bb4
- 2.S1xg3#
- 2.S5xg3#
- 1...Sc4
- 2.Qxc4#
- 1...exf5!
- threat
- 1.Sg6?
- threat
- 2.Qxe5#
- 1...Bd2+
- 2.Sxd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bd5
- 2.Qe2#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4!
- threat
- 1.Bh1?
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd1
- 2.Qd3#
- 2.Qc4#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sa4
- 2.Qd3#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Bxf3#
- 1...g2!
- 1...Bd2+
- 1.Bg1?
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe2#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd1
- 2.Qd3#
- 2.Qc4#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sa4
- 2.Qd3#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Bxf3#
- 1...Bf2!
- 1...Bd2+
- 1.Bb6?
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe2#
- 1...Bc6
- 2.Qxc6#
- 1...Sd1
- 2.Qd3#
- 2.Qc4#
- 1...Sd3
- 2.Qxd3#
- 2.Qc4#
- 2.cxd3#
- 1...Sa4
- 2.Qd3#
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Bxf3#
- 1...Bb7!
- 1...Bd2+
- 1.Qb3?
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 2.Qxf3#
- 1...Sc4
- 2.Qxc4#
- 2.Qd3#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe3#
- 1...Bb7
- 2.Qxb7#
- 1...Sd1
- 2.Qc4#
- 2.Qd3#
- 1...Sd3
- 2.Qc4#
- 2.Qxd3#
- 2.cxd3#
- 1...Sa4
- 2.Qc4#
- 2.Qd3#
- 1...Sg4
- 2.Bxf3#
- 2.Qxf3#
- 1...Bc6!
- 1...Bd2+
- 1.Qc5?
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qe3#
- 1...Bc6
- 2.Qxc6#
- 1...Sd1
- 2.Qc4#
- 1...Sd3
- 2.Qc4#
- 1...Sa4
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Bxf3#
- 1...Bb7!
- 1...Bd2+
- 1.Sxf3?
- Keys
- 1.Qd7!
- 1...Bd2+
- 2.Sxd2#
- 1...Sxf1
- 2.Bxf3#
- 1...Bf2
- 2.Sd2#
- 1...Bc3
- 2.Sxg3#
- 1...Bb4
- 2.Sxg3#
- 1...Ba5
- 2.Sxg3#
- 1...Bd5
- 2.Qh7#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 2.cxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Bxf3#
- 1...Bd2+
- 1.Qd7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(a);CHECK,N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR2(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- S(c);N_GUARD::B(C),XR(d)
- Tries
- Try
- S(D);XR(d)
- Threat
- DUALS(3)
- Refutation
- S(c);CHECK,P_SPINS(c),XS(D)
- Try
- S(D);
- Threat
- S(D)
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- P(h);XS(D)
- Try
- S(D);
- Threat
- QAR1(E),XP(g)
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR2(E)
- S(b);N_GUARD::QAR2(E),XS(b)
- Refutation
- S(c);
- Try
- B(C);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR2(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(c);N_GUARD::B(C),XR(d)
- Refutation
- P(e);N_SPINR(d)
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR2(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(c);N_GUARD::B(C),XR(d)
- Refutation
- B(a);
- Try
- B(G);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR2(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(c);N_GUARD::B(C),XR(d)
- Refutation
- B(i);
- Try
- Q(E);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR1(E)
- B(i);N_GUARD::QAB(E),XB(i)
- Refutation
- B(i);
- Try
- Q(E);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAR1(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAR2(E)
- S(b);N_GUARD::QAR2(E),XS(b)
- S(c);N_GUARD::B(C),XR(d)
- Refutation
- B(i);
- Try
- Actual
- Q(E);
- Vars
- B(a);CHECK,N_GUARD::S(A),XB(a)
- S(c);N_GUARD,XS(A)::B(C),XR(d)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD::S(A),XP(e)
- B(i);SBLOCK::QAB(E)
- B(i);N_GUARD::QAB(E),XB(i)
- S(b);N_GUARD::QAB1(E)
- S(c);N_GUARD::B(C),XR(d)
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