MESON Chess Problem Database
Problem Display
PID: 182493 (b7/2QB4/8/8/2RrkPN1/5nK1/2P5/8 w - - 0 1)
Preiswerk, Walther Edouard
Leipziger Tageblatt, 1920
#2
7 + 4
| 16108 | Walther Preiswerks Shachprobleme (M. Henneberger) | 1949 |
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Sf6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Se1
- 2.Qe5#
- 1...Sg1
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...Kd5
- Tries
- 1.Kf2?
- threat
- 2.Sf6#
- 1...Kd5
- 2.Sf6#
- 1...Se5
- 2.Qxe5#
- 1...Rxc4!
- threat
- 1.Sf2+?
- 1...Kd5
- 2.Rc5#
- 2.Qc5#
- 1...Ke3!
- 1...Kd5
- 1.Bf5+?
- 1...Kd5
- 2.Se3#
- 2.Sf6#
- 2.Rc5#
- 2.Qc5#
- 1...Kxf5!
- 1...Kd5
- 1.Bc6+?
- 1...Kf5
- 2.Qf7#
- 1...Bxc6!
- 1...Kf5
- 1.Be6?
- threat
- 2.Qh7#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...Rxc4!
- threat
- 1.Bc8?
- 1...Kd5
- 2.Sf6#
- 1...Bd5
- 2.Qh7#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Se1
- 2.Qe5#
- 1...Sg1
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...Rxc4!
- 1...Kd5
- 1.Rxd4+?
- 1...Sxd4
- 2.Qe5#
- 1...Kxd4!
- 1...Sxd4
- 1.Qd6?
- 1...Rxc4
- 2.Qd3#
- 1...Bd5
- 2.Qg6#
- 1...Bc6
- 2.Qxc6#
- 1...Se1
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.Qe6#
- 1...Sg1
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.Qe6#
- 1...Sd2
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.Qe6#
- 1...Sh2
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.Qe6#
- 1...Sh4
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 2.Qe6#
- 1...Se5
- 2.Rxd4#
- 2.Qxe5#
- 2.Qxd4#
- 1...Sg5
- 2.Rxd4#
- 2.Qe5#
- 2.Qxd4#
- 1...Bb7!
- 1...Rxc4
- 1.Qc5?
- threat
- 2.Bf5#
- 2.Qf5#
- 1...Rxc4
- 2.Sf2#
- 2.Sf6#
- 2.Bf5#
- 1...Sh4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe5#
- 1...Se5
- 2.Rxd4#
- 2.Qxd4#
- 2.Qxe5#
- 1...Bd5!
- threat
- 1.f5?
- 1...Kd5
- 2.Sf6#
- 1...Bd5
- 2.Qf4#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Se1
- 2.Qe5#
- 1...Sg1
- 2.Qe5#
- 1...Sd2
- 2.Qe5#
- 1...Sh2
- 2.Qe5#
- 1...Sh4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Sg5
- 2.Qe5#
- 1...Rxc4!
- 1...Kd5
- 1.Kf2?
- Keys
- 1.Qb6!
- 1...Kd5
- 2.Qe6#
- 1...Rxc4
- 2.Sf6#
- 1...Bd5
- 2.Qg6#
- 1...Bc6
- 2.Qxc6#
- 1...Bb7
- 2.Qxb7#
- 1...Se1
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe6#
- 1...Sg1
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe6#
- 1...Sd2
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe6#
- 1...Sh2
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe6#
- 1...Sh4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe6#
- 1...Se5
- 2.Rxd4#
- 2.Qxd4#
- 1...Sg5
- 2.Rxd4#
- 2.Qxd4#
- 1...Kd5
- 1.Qb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- K(c);N_SPINR(b),S_FLIGHT::S(E)
- B(d);N_GUARD::QAB(F),XB(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Tries
- Try
- K(B);S_FLIGHT
- Threat
- S(E)
- Vars
- K(c);N_SPINR(b),S_FLIGHT::S(E)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- R(b);N_SPINR(b),XR(C)
- Try
- S(E);CHECK
- Refutation
- K(c);N_SPINR(b),P-FLIGHT
- Try
- B(G);CHECK
- Refutation
- K(c);N_SPINR(b),S_FLIGHT,XB(G)
- Try
- B(G);CHECK
- Vars
- K(c);N_SPINR(b),S_FLIGHT::QAR2(F)
- Refutation
- B(d);XB(G)
- Try
- B(G);
- Threat
- QAB(F)
- Vars
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- R(b);N_SPINR(b),XR(C)
- Try
- B(G);
- Vars
- K(c);N_SPINR(b),S_FLIGHT::S(E)
- B(d);SBLOCK::QAB(F)
- B(d);N_GUARD::QAB(F),XB(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- R(b);N_SPINR(b),XR(C)
- Try
- R(C);CHECK,XR(b)
- Vars
- S(a);XR(C)::QAR1(F)
- Refutation
- K(c);P-FLIGHT,XR(C)
- Try
- Q(F);
- Vars
- R(b);N_SPINR(b),OGATE,XR(C)::QAB1(F)
- B(d);SBLOCK::QAB(F)
- B(d);N_GUARD::QAB(F),XB(d)
- Refutation
- B(d);
- Try
- Q(F);
- Threat
- DUALS(2)
- Refutation
- B(d);
- Try
- P(D);
- Vars
- K(c);N_SPINR(b),S_FLIGHT::S(E)
- B(d);SBLOCK::QAR1(F)
- B(d);N_GUARD::QAB(F),XB(d)
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- Refutation
- R(b);N_SPINR(b),XR(C)
- Try
- Actual
- Q(F);
- Vars
- K(c);N_SPINR(b),S_FLIGHT::QAB1(F)
- R(b);N_SPINR(b),XR(C)::S(E)
- B(d);SBLOCK::QAB(F)
- B(d);N_GUARD::QAB(F),XB(d)
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