MESON Chess Problem Database
Problem Display
PID: 64882 (6Q1/3pp2n/R3NB2/2bN1kp1/2P2Pn1/2pK1P2/1rBPRp2/7r w - - 0 1)
Hoffmann, Martin Wolfgang
2nd Prize, Neue Zurcher Zeitung, 1985
#2
12 + 11
| 23 | Die Schwalbe | 1989 |
| 16895 | Schweizer Schachkompositionen (1976-1986) (Henneberger) | 1989 |
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxh7#
- 1...Rhb1
- 2.Qxh7#
- 1...Rc1
- 2.Qxh7#
- 1...Rd1
- 2.Qxh7#
- 1...Re1
- 2.Qxh7#
- 1...Rf1
- 2.Qxh7#
- 1...Rg1
- 2.Qxh7#
- 1...Rbb1
- 2.Kxc3#
- 1...Rb4
- 2.Kxc3#
- 1...Rb5
- 2.Kxc3#
- 1...Rb6
- 2.Kxc3#
- 1...Rb7
- 2.Kxc3#
- 1...Rb8
- 2.Kxc3#
- 1...Ba3
- 2.Sd4#
- 1...Bb4
- 2.Sd4#
- 1...Bd4
- 2.Sxd4#
- 1...Bd6
- 2.Sd4#
- 1...Sh2
- 2.Re5#
- 2.Qxh7#
- 1...Se5+
- 2.Rxe5#
- 1...Sgxf6
- 2.Re5#
- 1...Sh6
- 2.Re5#
- 2.Qxh7#
- 1...Shxf6
- 2.Qxg5#
- 1...Sf8
- 2.Qxg5#
- 1...gxf4
- 2.Qxg4#
- 2.fxg4#
- 1...Ra1
- Tries
- 1.Sxe7+?
- 1...Kxf6
- 2.Qg7#
- 1...Bxe7!
- 1...Kxf6
- 1.Sf8?
- threat
- 2.Qg6#
- 1...Se5+
- 2.Rxe5#
- 1...Sxf8
- 2.Qxg5#
- 1...Rh6!
- threat
- 1.Bxc3?
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...gxf4
- 2.Qxg4#
- 2.fxg4#
- 1...dxe6
- 2.Qxe6#
- 1...Bd4
- 2.Sxd4#
- 1...Bb6
- 2.Sxe7#
- 1...Bd6
- 2.Sd4#
- 1...Sgf6
- 2.Re5#
- 1...Shf6
- 2.Qxg5#
- 1...d6
- 2.Sxe7#
- 1...Rb6!
- threat
- 1.Bd4?
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...Bxd4
- 2.Sxd4#
- 1...gxf4
- 2.Qxg4#
- 2.fxg4#
- 1...dxe6
- 2.Qxe6#
- 1...Rb6
- 2.Kxc3#
- 1...Bb6
- 2.Sxe7#
- 1...Sgf6
- 2.Se3#
- 2.Re5#
- 1...Shf6
- 2.Qxg5#
- 1...d6
- 2.Sxe7#
- 1...Bd6!
- threat
- 1.Be5?
- threat
- 2.Sg7#
- 1...Sxe5+
- 2.Rxe5#
- 1...gxf4
- 2.Qxg4#
- 2.fxg4#
- 1...dxe6
- 2.Qxe6#
- 1...Rb6
- 2.Kxc3#
- 1...Bb6
- 2.Sxe7#
- 1...Bd6
- 2.Sd4#
- 1...Shf6
- 2.Qxg5#
- 1...d6
- 2.Sxe7#
- 1...Sgf6!
- threat
- 1.Bxg5?
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...dxe6
- 2.Qxe6#
- 1...Rb6
- 2.Kxc3#
- 1...Bd4
- 2.Sxe7#
- 2.Sxd4#
- 1...Bb6
- 2.Sxe7#
- 1...Bd6
- 2.Sd4#
- 1...Sgf6
- 2.Re5#
- 1...d6
- 2.Sxe7#
- 1...Shf6!
- threat
- 1.Qf7?
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...dxe6!
- threat
- 1.Qe8?
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...dxe6!
- threat
- 1.Sxe7+?
- Keys
- 1.Bh8!
- threat
- 2.Sg7#
- 1...Se5+
- 2.Rxe5#
- 1...gxf4
- 2.Qxg4#
- 2.fxg4#
- 1...dxe6
- 2.Qxe6#
- 1...Rb6
- 2.Kxc3#
- 1...Bd4
- 2.Sxe7#
- 2.Sxd4#
- 1...Bb6
- 2.Sxe7#
- 1...Bd6
- 2.Sd4#
- 1...Sgf6
- 2.Re5#
- 1...Shf6
- 2.Qxg5#
- 1...d6
- 2.Sxe7#
- threat
- 1.Bh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 16
- Sets
- R(a);N_GUARD::QAB(L),XS(k)
- R(a);N_GUARD,P_PINP(B)::QAB(L),XS(k)
- R(b);N_GUARD::B(A)+K(D),XP(d)
- B(f);N_GUARD::S(J)
- B(f);N_GUARD::S(J),XB(f)
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(e);N_GUARD,XB(K)::R1(C)
- S(k);N_GUARD,XB(K)::QAR1(L),XP(h)
- S(k);N_GUARD::QAR1(L),XP(h)
- Tries
- Try
- S(H);CHECK,XP(j)
- Vars
- K(g);P-FLIGHT,XB(K)::QAB1(L)
- Refutation
- B(f);XS(H)
- Try
- S(J);
- Threat
- QAB1(L)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- S(k);N_GUARD,XS(J)::QAR1(L),XP(h)
- Refutation
- R(a);
- Try
- B(K);XP(d)
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- P(i);OGATE,XS(J)::QAB1(L),XP(i)
- B(f);N_GUARD::S(J),XB(f)
- B(f);N_GUARD::S(H),XP(j)
- B(f);N_GUARD::S(J)
- S(e);N_GUARD::R1(C)
- S(k);N_GUARD::QAR1(L),XP(h)
- P(i);S_CUTB(f)::S(H),XP(j)
- Refutation
- R(b);
- Try
- B(K);
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- B(f);XB(K)::S(J),XB(f)
- P(i);OGATE,XS(J)::QAB1(L),XP(i)
- R(b);N_GUARD::B(A)+K(D),XP(d)
- B(f);N_GUARD::S(H),XP(j)
- S(k);N_GUARD::QAR1(L),XP(h)
- P(i);S_CUTB(f)::S(H),XP(j)
- Refutation
- B(f);
- Try
- B(K);
- Threat
- S(J)
- Vars
- S(e);CHECK,OGATE,XB(K)::R1(C),XS(e)
- P(i);OGATE,XS(J)::QAB1(L),XP(i)
- R(b);N_GUARD::B(A)+K(D),XP(d)
- B(f);N_GUARD::S(H),XP(j)
- B(f);N_GUARD::S(J)
- S(k);N_GUARD::QAR1(L),XP(h)
- P(i);S_CUTB(f)::S(H),XP(j)
- Refutation
- S(e);
- Try
- B(K);XP(h)
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- P(i);OGATE,XS(J)::QAB1(L),XP(i)
- R(b);N_GUARD::B(A)+K(D),XP(d)
- B(f);N_GUARD::S(H),XP(j)
- B(f);N_GUARD::S(J)
- S(e);N_GUARD::R1(C)
- P(i);S_CUTB(f)::S(H),XP(j)
- Refutation
- S(k);
- Try
- Q(L);
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- Refutation
- P(i);XS(J)
- Try
- Q(L);
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- Refutation
- P(i);XS(J)
- Try
- Actual
- B(K);
- Threat
- S(J)
- Vars
- S(e);CHECK,N_GUARD::R1(C),XS(e)
- P(i);OGATE,XS(J)::QAB1(L),XP(i)
- R(b);N_GUARD::B(A)+K(D),XP(d)
- B(f);N_GUARD::S(H),XP(j)
- B(f);N_GUARD::S(J)
- S(e);N_GUARD::R1(C)
- S(k);N_GUARD::QAR1(L),XP(h)
- P(i);S_CUTB(f)::S(H),XP(j)
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).