MESON Chess Problem Database
Problem Display
PID: 182496 (3rN3/2p1p3/4P3/2pk1Bp1/Q5P1/3p4/1B1P1n2/1KR5 w - - 0 1)
Preiswerk, Walther Edouard
Neue Zurcher Zeitung, 1945
#2
9 + 8
| 16108 | Walther Preiswerks Shachprobleme (M. Henneberger) | 1949 |
| 5454 | Near Snap | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Ra8
- 2.Qd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Rxe8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...c6
- 2.Qc4#
- 1...Rd6
- Tries
- 1.Ka1?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Ra8!
- 1...Rxe8
- 1.Ka2?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Ra8!
- 1...Rxe8
- 1.Ba1?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Rb8+!
- 1...Rxe8
- 1.Bg7?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Rb8+!
- 1...Rxe8
- 1.Bh8?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Rb8+!
- 1...Rxe8
- 1.Bg6?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Kxe6!
- 1...Rxe8
- 1.Re1?
- threat
- 2.Re5#
- 1...Sxg4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Rxe8!
- threat
- 1.Rc2?
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...dxc2+!
- 1...Rxe8
- 1.Qb3+?
- 1...c4
- 2.Qxc4#
- 1...Kc6!
- 1...c4
- 1.Qb5?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Rxe8
- 2.Qd7#
- 2.Qxc5#
- 1...Se4!
- threat
- 1.Qa2+?
- 1...c4
- 2.Qxc4#
- 1...Kc6!
- 1...c4
- 1.Qb4?
- threat
- 2.Rxc5#
- 2.Qxc5#
- 1...Kc6
- 2.Rxc5#
- 1...Rxe8
- 2.Qxc5#
- 1...Se4
- 2.Qxe4#
- 1...c4
- 2.Qxc4#
- 1...cxb4!
- threat
- 1.Qa8+?
- 1...c6
- 2.Qxd8#
- 1...Rxa8!
- 1...c6
- 1.Ka1?
- Keys
- 1.Bh7!
- 1...Kxe6
- 2.Bg8#
- 1...Rxe8
- 2.Qd7#
- 1...Sxg4
- 2.Qe4#
- 1...c4
- 2.Qxc4#
- 1...Ra8
- 2.Qd7#
- 1...Rd6
- 2.Sxc7#
- 1...Rd7
- 2.Qxd7#
- 1...Rb8
- 2.Qd7#
- 1...Rc8
- 2.Qd7#
- 1...Sd1
- 2.Qe4#
- 1...Sh1
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...c6
- 2.Qc4#
- 1...Kxe6
- 1.Bh7!
Anticipated by 30763(1902)
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD::QAR2(E)
- R(h);N_GUARD,P_PINB(C)::QAR2(E)
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- P(f);SBLOCK::QAB1(E)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- R(h);P_PINQ(E)
- Try
- K(A);S_FLIGHT
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- R(h);P_PINQ(E)
- Try
- B(C);
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- R(h);CHECK
- Try
- B(C);
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- R(h);CHECK
- Try
- B(C);
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- R(h);CHECK
- Try
- B(G);
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD,P_PINB(C)::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- K(d);S_FLIGHT,XP(H)
- Try
- R(B);
- Threat
- R1(B)
- Vars
- S(a);N_GUARD,XP(F)::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- Refutation
- R(h);XS(I)
- Try
- R(B);
- Vars
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD,P_PINB(C)::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
- Refutation
- P(b);CHECK,XR(B)
- Try
- Q(E);CHECK
- Vars
- P(c);P_SPINP(c)::QAB1(E),XP(c)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT
- Try
- Q(E);P_PINP(c)
- Threat
- DUALS(2)
- Refutation
- S(a);
- Try
- Q(E);CHECK
- Vars
- P(c);P_SPINP(c)::QAB1(E),XP(c)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- K(d);P_SPINP(c),S_FLIGHT::R1(B),XP(c)
- R(h);XS(I)::QAR1(E),XP(c)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(c);::QAB1(E),XP(c)
- Refutation
- P(c);XQ(E)
- Try
- Q(E);CHECK
- Vars
- P(f);P_SPINP(f),SBLOCK::QAR(E),XR(h)
- Refutation
- R(h);XQ(E)
- Try
- Actual
- B(G);
- Vars
- K(d);OGATEB,S_FLIGHT,XP(H)::B(G)
- R(h);N_GUARD,XS(I)::QAR2(E)
- S(a);N_GUARD,XP(F)::QAB1(E)
- P(c);::QAB1(E),XP(c)
- R(h);N_GUARD::QAR2(E)
- R(h);SBLOCK::S(I),XP(f)
- R(h);N_GUARD::QAR2(E),XR(h)
- R(h);N_GUARD,P_PINB(C)::QAR2(E)
- S(a);N_GUARD::QAB1(E)
- S(a);N_GUARD::QAB1(E),XS(a)
- P(f);SBLOCK::QAB1(E)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).