MESON Chess Problem Database
Problem Display
PID: 222231 (3b4/1Kp1n3/2P1B3/1p2k1P1/1P6/p2p1P2/Q2B4/8 w - - 0 1)
Langweil, Walter
Funkschach, 1926
#2
8 + 7
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Qa1#
- 1...Kd6
- 2.Bf4#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sxc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Kd4
- Tries
- 1.Ka6?
- 1...Kd4
- 2.Qa1#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Kd6!
- 1...Kd4
- 1.Ka8?
- 1...Kd4
- 2.Qa1#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Kd6!
- 1...Kd4
- 1.Bc1?
- 1...Kd4
- 2.Qa1#
- 1...Kd6
- 2.Bf4#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...d2!
- 1...Kd4
- 1.Be3?
- 1...Kd6
- 2.Bf4#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...d2!
- 1...Kd6
- 1.Bf4+?
- 1...Kd4
- 2.Qa1#
- 1...Kxf4!
- 1...Kd4
- 1.Bg8?
- 1...Kd4
- 2.Qa1#
- 1...Kf5
- 2.Qe6#
- 1...Kd6
- 2.Bf4#
- 2.Qe6#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sxg8!
- 1...Kd4
- 1.Qb3?
- 1...Kd4
- 2.Qc3#
- 1...Kd6
- 2.Bf4#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...a2!
- 1...Kd4
- 1.Qc4?
- threat
- 2.Bf4#
- 1...Kd6
- 2.Bf4#
- 1...Sd5
- 2.Qxd5#
- 1...Sg6
- 2.Qd5#
- 1...bxc4!
- threat
- 1.Ka6?
- Keys
- 1.Bf7!
- 1...Kd4
- 2.Qa1#
- 1...Kf5
- 2.Qe6#
- 1...Kd6
- 2.Bf4#
- 2.Qe6#
- 1...Sxc6
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Kd4
- 1.Bf7!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- K(d);S_FLIGHT::QAB(A)
- K(d);S_FLIGHT::B(B)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- S(f);N_GUARD,XP(F)::QAR1(A)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- K(d);S_FLIGHT::QAB(A)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- K(d);S_FLIGHT
- Try
- K(H);S_FLIGHT
- Vars
- K(d);S_FLIGHT::QAB(A)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- K(d);S_FLIGHT
- Try
- B(B);
- Vars
- K(d);S_FLIGHT::QAB(A)
- K(d);S_FLIGHT::B(B)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- P(b);
- Try
- B(B);
- Vars
- K(d);S_FLIGHT::B(B)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- P(b);
- Try
- B(B);CHECK
- Vars
- K(d);S_FLIGHT::QAB(A)
- Refutation
- K(d);S_FLIGHT,XB(B)
- Try
- B(G);
- Vars
- K(d);S_FLIGHT::QAB(A)
- K(d);P-FLIGHT::QAB1(A)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD,SBLOCK::QAR1(A)
- S(f);N_GUARD::QAR1(A)
- Refutation
- S(f);XB(G)
- Try
- Q(A);
- Vars
- K(d);S_FLIGHT::QAB1(A)
- K(d);S_FLIGHT::B(B)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- P(a);
- Try
- Q(A);
- Threat
- B(B)
- Vars
- K(d);S_FLIGHT::B(B)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD::QAR1(A)
- Refutation
- P(c);XQ(A)
- Try
- Actual
- B(G);
- Vars
- K(d);S_FLIGHT::QAB(A)
- K(d);P-FLIGHT::QAB1(A)
- S(f);N_GUARD,XP(F)::QAR1(A)
- S(f);N_GUARD::QAR1(A),XS(f)
- S(f);N_GUARD,SBLOCK::QAR1(A)
- S(f);N_GUARD::QAR1(A)
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).