MESON Chess Problem Database
Problem Display
PID: 155840 (2k1K2R/Q1ppPpp1/p2r1p2/bB1b2r1/4N3/q5B1/8/8 w - - 0 1)
Schlegl, G?
Nederlandse Bond van Probleemvrienden, 1932
#2
7 + 12
| 1577 | Jaarboek | 1932 |
SOLUTION
- SOUND
- Sets
- 1...Rb6
- 2.Bxd7#
- 2.Qxc7#
- 1...Rc6
- 2.Qa8#
- 1...Re6
- 2.Kxf7#
- 2.Bxd7#
- 1...Ba2
- 2.Qa8#
- 1...Bb3
- 2.Qa8#
- 1...Bc4
- 2.Qa8#
- 1...Bxe4
- 2.Kxf7#
- 1...Bc6
- 2.Kxf7#
- 1...Be6
- 2.Qa8#
- 1...Bb7
- 2.Kxf7#
- 1...Ba8
- 2.Kxf7#
- 2.Qxa8#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Bxa6#
- 1...Rb6
- Tries
- 1.Sxd6+?
- 1...cxd6
- 2.Bxd7#
- 1...Qxd6!
- 1...cxd6
- 1.Bxa6+?
- 1...Bb7
- 2.Kxf7#
- 2.Bxb7#
- 2.Qxb7#
- 2.Qa8#
- 1...Rxa6!
- 1...Bb7
- 1.Qb7+?
- 1...Bxb7
- 2.Kxf7#
- 1...Kxb7!
- 1...Bxb7
- 1.Sxd6+?
- Keys
- 1.Kf8!
- threat
- 2.e8Q#
- 2.e8R#
- 1...Qxg3
- 2.e8Q#
- 2.e8R#
- 1...Rxg3
- 2.e8Q#
- 2.e8R#
- 1...Bxe4
- 2.Kxf7#
- 2.e8Q#
- 2.e8R#
- 1...axb5
- 2.e8Q#
- 2.e8R#
- 1...Qc1
- 2.e8Q#
- 2.e8R#
- 1...Qb2
- 2.e8Q#
- 2.e8R#
- 1...Qb4
- 2.e8Q#
- 2.e8R#
- 1...Qc5
- 2.e8Q#
- 2.e8R#
- 1...Qa1
- 2.e8Q#
- 2.e8R#
- 1...Qa2
- 2.e8Q#
- 2.e8R#
- 1...Qb3
- 2.e8Q#
- 2.e8R#
- 1...Qc3
- 2.e8Q#
- 2.e8R#
- 1...Qd3
- 2.e8Q#
- 2.e8R#
- 1...Qe3
- 2.e8Q#
- 2.e8R#
- 1...Qf3
- 2.e8Q#
- 2.e8R#
- 1...Qa4
- 2.e8Q#
- 2.e8R#
- 1...Rg4
- 2.e8Q#
- 2.e8R#
- 1...Re5
- 2.Kxg7#
- 1...Rf5
- 2.Kxg7#
- 2.e8Q#
- 2.e8R#
- 1...Rh5
- 2.e8Q#
- 2.e8R#
- 1...Rg6
- 2.e8Q#
- 2.e8R#
- 1...Rb6
- 2.Qxc7#
- 1...Rc6
- 2.Qa8#
- 1...Re6
- 2.Kxf7#
- 1...Be1
- 2.e8Q#
- 2.e8R#
- 1...Bd2
- 2.e8Q#
- 2.e8R#
- 1...Bc3
- 2.e8Q#
- 2.e8R#
- 1...Bb4
- 2.e8Q#
- 2.e8R#
- 1...Bb6
- 2.e8Q#
- 2.e8R#
- 1...Ba2
- 2.Qa8#
- 2.e8Q#
- 2.e8R#
- 1...Bb3
- 2.Qa8#
- 2.e8Q#
- 2.e8R#
- 1...Bc4
- 2.Qa8#
- 2.e8Q#
- 2.e8R#
- 1...Bc6
- 2.Kxf7#
- 2.e8Q#
- 2.e8R#
- 1...Be6
- 2.Qa8#
- 2.e8Q#
- 2.e8R#
- 1...Bb7
- 2.Kxf7#
- 2.e8Q#
- 2.e8R#
- 1...Ba8
- 2.Kxf7#
- 2.Qxa8#
- 2.e8Q#
- 2.e8R#
- 1...f5
- 2.e8Q#
- 2.e8R#
- 1...c5
- 2.Sxd6#
- 1...c6
- 2.Bxa6#
- 1...g6
- 2.Kg7#
- 2.e8Q#
- 2.e8R#
- threat
- 1.Kf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(f);S_CUTB(c)::QAR2(D)
- B(c);N_GUARD::QAR2(D)
- B(c);XS(B)::R(G)+K(F),XP(j)
- B(c);::R(G)+K(F),XP(j)
- P(h);N_GUARD,S_CUTQ(a)::S(B),XR(f)
- P(h);S_CUTB(c),S_CUTR(f)::B(C),XP(e)
- Tries
- Try
- S(B);CHECK,XR(f)
- Vars
- P(h);XS(B)::B(C),XP(i)
- Refutation
- Q(a);XS(B)
- Try
- B(C);CHECK,XP(e)
- Refutation
- R(f);XB(C)
- Try
- Q(D);CHECK
- Vars
- B(c);SBLOCK,XQ(D)::R(G)+K(F),XP(j)
- Refutation
- K(l);S_FLIGHT,XQ(D)
- Try
- Actual
- K(F);P-FLIGHT
- Threat
- P=Q
- Vars
- Q(a);XB(A)::P=Q
- R(d);XB(A)::P=Q
- P(e);XB(C)::P=Q
- Q(a);::P=Q
- R(d);::P=Q
- R(d);::R(G)+K(F),XP(k)
- R(f);P_PINP(E),S_CUTB(b)::QAR1(D),XP(h)
- R(f);P_PINP(E),S_CUTB(c)::QAR2(D)
- R(f);P_PINP(E)::R(G)+K(F),XP(j)
- B(b);::P=Q
- P(g);::P=Q
- P(h);N_GUARD,S_CUTQ(a)::S(B),XR(f)
- P(h);S_CUTB(c),S_CUTR(f)::B(C),XP(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).