MESON Chess Problem Database
Problem Display
PID: 261207 (5R2/1ppRp1K1/6p1/4k1p1/p1Qb4/1rn1r3/BB1N1n1N/q7 w - - 0 1)
Braun, Georges
Neue Zurcher Zeitung, 1979
#2
8 + 13
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxb2
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...Ra3
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...Rb4
- 2.Qe6#
- 2.Qxc7#
- 1...Rb5
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...Rb6
- 2.Qxd4#
- 1...Re1
- 2.Shf3#
- 1...Re2
- 2.Shf3#
- 1...Rf3
- 2.Shxf3#
- 1...Re4
- 2.Sdf3#
- 2.Shf3#
- 1...Bc5
- 2.Qd5#
- 1...Bb6
- 2.Qd5#
- 1...Ba7
- 2.Qd5#
- 1...Sfd1
- 2.Sg4#
- 1...Sh1
- 2.Sg4#
- 1...Sd3
- 2.Sg4#
- 1...Sh3
- 2.Sg4#
- 1...Sfe4
- 2.Sg4#
- 1...Sg4
- 2.Sxg4#
- 1...Sb1
- 2.Qd5#
- 1...Scd1
- 2.Qd5#
- 1...Sxa2
- 2.Qd5#
- 1...Se2
- 2.Qd5#
- 1...Sce4
- 2.Qd5#
- 1...Sb5
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...e6
- 2.Qxd4#
- 2.Qxc7#
- 1...Rxb2
- Tries
- 1.Sdf3+?
- 1...Ke4+
- 2.Rxd4#
- 2.Qxd4#
- 1...Rxf3!
- 1...Ke4+
- 1.Bxb3?
- threat
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...Sd5
- 2.Qxd5#
- 1...Qa3
- 2.Qe6#
- 2.Qxd4#
- 1...Rd3
- 2.Qe6#
- 2.Qxc7#
- 1...Re4
- 2.Sdf3#
- 2.Shf3#
- 2.Qe6#
- 2.Qxc7#
- 1...Bc5
- 2.Qd5#
- 2.Qe6#
- 2.Qxc5#
- 1...Bb6
- 2.Qd5#
- 2.Qe6#
- 1...Ba7
- 2.Qd5#
- 2.Qe6#
- 2.Qxc7#
- 1...Sfe4
- 2.Sg4#
- 2.Qe6#
- 2.Qxd4#
- 1...Se2
- 2.Qd5#
- 2.Qe6#
- 2.Qc5#
- 2.Qxc7#
- 1...Sce4
- 2.Qd5#
- 2.Qe6#
- 2.Qxd4#
- 1...Sb5
- 2.Qd5#
- 2.Qe6#
- 2.Qc5#
- 1...c5
- 2.Qe6#
- 1...c6
- 2.Qe6#
- 2.Qxd4#
- 1...e6
- 2.Qxe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...axb3!
- threat
- 1.Bxc3?
- threat
- 2.Qd5#
- 1...Qh1
- 2.Bxd4#
- 1...Rb5
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...e6
- 2.Qxd4#
- 2.Qc5#
- 2.Qxc7#
- 1...c6!
- threat
- 1.Rf6?
- threat
- 2.Rxe7#
- 2.Qe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...Rb4
- 2.Rxe7#
- 2.Qe6#
- 2.Qxc7#
- 1...Rb6
- 2.Qxd4#
- 1...Rd3
- 2.Rxe7#
- 2.Qe6#
- 2.Qxc7#
- 1...Re4
- 2.Sdf3#
- 2.Shf3#
- 2.Rxe7#
- 2.Qe6#
- 2.Qxc7#
- 1...Bc5
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 2.Qxc5#
- 1...Bb6
- 2.Rd5#
- 2.Rxe7#
- 2.Qd5#
- 2.Qe6#
- 1...Ba7
- 2.Rd5#
- 2.Rxe7#
- 2.Qd5#
- 2.Qe6#
- 2.Qxc7#
- 1...Sfe4
- 2.Sg4#
- 2.Rxe7#
- 2.Qe6#
- 2.Qxd4#
- 1...Se2
- 2.Rd5#
- 2.Rxe7#
- 2.Qd5#
- 2.Qe6#
- 2.Qc5#
- 2.Qxc7#
- 1...Sce4
- 2.Rd5#
- 2.Rxe7#
- 2.Qd5#
- 2.Qe6#
- 2.Qxd4#
- 1...Sb5
- 2.Rd5#
- 2.Rxe7#
- 2.Qd5#
- 2.Qe6#
- 2.Qc5#
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 2.Qxd4#
- 1...c5
- 2.Rxe7#
- 2.Qe6#
- 1...c6
- 2.Rxe7#
- 2.Qe6#
- 2.Qxd4#
- 1...e6
- 2.Qxe6#
- 2.Qxd4#
- 2.Qxc7#
- 1...exf6!
- threat
- 1.Qf7?
- threat
- 2.Qxe7#
- 1...Bc5
- 2.Rd5#
- 2.Qd5#
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...e6
- 2.Qf6#
- 1...Rb6!
- threat
- 1.Qc6?
- threat
- 2.Sc4#
- 2.Rxe7#
- 1...Qf1
- 2.Rxe7#
- 1...Rb4
- 2.Rxe7#
- 2.Qe6#
- 2.Qxc7#
- 1...Bc5
- 2.Sc4#
- 2.Rd5#
- 2.Qd5#
- 1...Bb6
- 2.Sc4#
- 2.Rd5#
- 2.Qd5#
- 1...Ba7
- 2.Sc4#
- 2.Rd5#
- 2.Qd5#
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 1...b5
- 2.Rxe7#
- 1...e6
- 2.Sc4#
- 2.Qxc7#
- 1...bxc6!
- threat
- 1.Sdf3+?
- Keys
- 1.Se4!
- threat
- 2.Rxe7#
- 1...Kxe4+
- 2.Qxd4#
- 1...Rxe4
- 2.Sf3#
- 1...Sfxe4
- 2.Sg4#
- 1...Scxe4
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Rb6
- 2.Qxd4#
- 1...Bc5
- 2.Qd5#
- 1...e6
- 2.Qxd4#
- threat
- 1.Se4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- R(c);::QAB1(E),XB(g)
- R(e);N_GUARD::S(D)
- R(e);N_GUARD::S(D),XR(e)
- B(g);P_SPINS(d)::QAR1(E)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(d);N_GUARD,P_SPINB(g)::QAR1(E)
- S(d);N_GUARD,P_SPINB(g),XB(A)::QAR1(E)
- S(d);N_GUARD,P_SPINB(g)::QAR1(E),XS(d)
- Tries
- Try
- S(C);CHECK
- Refutation
- R(e);XS(C)
- Try
- B(A);XR(c)
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD,P_SPINB(g)::QAR1(E),XS(d)
- P(l);::QAR1(E)
- Refutation
- P(f);XB(A)
- Try
- B(B);P_PINB(g),XS(d)
- Threat
- QAR1(E)
- Vars
- Q(a);N_GUARD::B(B),XB(g)
- Refutation
- P(l);
- Try
- R(H);
- Threat
- DUALS(4)
- Vars
- R(c);::QAB1(E),XB(g)
- Refutation
- P(m);XR(H)
- Try
- Q(E);
- Threat
- QAR2(E),XP(m)
- Vars
- P(m);N_GUARD::QAB1(E)
- Refutation
- R(c);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- Q(a);::R(F),XP(m)
- P(k);::R(F),XP(m)
- Refutation
- P(k);XQ(E)
- Try
- Actual
- S(C);
- Threat
- R(F),XP(m)
- Vars
- K(h);CHECK,N_GUARD,P-FLIGHT,P_SPINB(g),XS(C)::QAR1(E),XB(g)
- R(e);N_GUARD,SBLOCK,XS(C)::S(D)
- S(b);N_GUARD,SBLOCK,XS(C)::S(D)
- S(d);N_GUARD,P_SPINB(g),XS(C)::QAR1(E)
- S(d);N_GUARD,P_SPINB(g)::QAR1(E),XS(d)
- R(c);::QAB1(E),XB(g)
- B(g);P_SPINS(d)::QAR1(E)
- P(m);SBLOCK::QAB1(E),XB(g)
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).