MESON Chess Problem Database
Problem Display
PID: 233566 (6B1/5q2/2p3N1/2B3bR/1Pp1kNP1/2Rp2n1/1K4P1/1Q6 w - - 0 1)
Witt, Andreas
Freie Presse, 1995
#2
11 + 7
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe8
- 2.Rxc4#
- 1...Qxf4
- 2.Rxc4#
- 1...Qf5
- 2.Rxc4#
- 1...Qa7
- 2.Rxc4#
- 1...Qb7
- 2.Rxc4#
- 1...Qc7
- 2.Rxc4#
- 1...Qe7
- 2.Rxc4#
- 1...Qh7
- 2.Rxc4#
- 1...Qf8
- 2.Rxc4#
- 1...Bh4
- 2.Re5#
- 1...Bh6
- 2.Re5#
- 1...Be7
- 2.Re5#
- 1...Bd8
- 2.Re5#
- 1...Sh1
- 2.Qe1#
- 1...Sxh5
- 2.Qe1#
- 1...Qe8
- Tries
- 1.Rxd3?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rxg3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qf6+
- 2.Rc3#
- 1...Qg7+
- 2.Rc3#
- 1...Bf6+
- 2.Rc3#
- 1...c3+
- 2.Rxc3#
- 1...Sxh5
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qe1#
- 1...cxd3
- 2.Qxd3#
- 1...Qd5
- 2.Re3#
- 2.Rxd5#
- 1...Qd7
- 2.Re3#
- 2.Rd5#
- 2.Rd6#
- 2.Rxd7#
- 1...Bd8
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rxg3#
- 2.Rdd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rxd8#
- 2.Re5#
- 1...Sf1
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rdh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sh1
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rdh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Qe1#
- 1...Se2
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rdh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sf5
- 2.Rd1#
- 2.Rd2#
- 2.Ra3#
- 2.Rb3#
- 2.Rc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rdh3#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qxg6!
- threat
- 1.Qg1?
- threat
- 2.Qe3#
- 2.Qd4#
- 1...Qxf4
- 2.Rxc4#
- 2.Qd4#
- 1...Bxf4
- 2.Qd4#
- 1...Se2
- 2.Qe3#
- 1...Qd5
- 2.Qe3#
- 1...Qf6
- 2.Qe3#
- 1...Qd7
- 2.Qe3#
- 1...Qg7
- 2.Qe3#
- 1...Bf6
- 2.Qe3#
- 1...Sf1
- 2.Qd4#
- 1...Sf5!
- threat
- 1.Rxd3?
- Keys
- 1.Sxd3!
- threat
- 2.Sdf4#
- 1...Qf2+
- 2.Sxf2#
- 1...Bc1+
- 2.Sxc1#
- 1...Kd5
- 2.Sdf4#
- 1...Qxg6
- 2.Rxc4#
- 1...cxd3
- 2.Qxd3#
- 1...Qd5
- 2.Sf2#
- 1...Qf1
- 2.Sf2#
- 2.Rxc4#
- 1...Qf3
- 2.Sf2#
- 2.Rxc4#
- 1...Qf4
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sdxf4#
- 2.Sde5#
- 2.Rxc4#
- 1...Qd7
- 2.Sf2#
- 1...Bf4
- 2.Sc1#
- 2.Se1#
- 2.Sf2#
- 2.Sdxf4#
- threat
- 1.Sxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 15
- Sets
- Q(g);N_GUARD::R(D),XP(c)
- Q(g);N_GUARD,XS(F)::R(D),XP(c)
- Q(g);N_GUARD,P_PINP(E)::R(D),XP(c)
- B(e);OGATE::R1(I)
- S(b);N_GUARD::QAR(A)
- S(b);N_GUARD,XR(I)::QAR(A)
- Tries
- Try
- R(D);XP(a)
- Threat
- DUALS(12)
- Vars
- Q(g);CHECK::QAB(A)+R(D)
- B(e);CHECK::QAB(A)+R(D)
- P(c);CHECK::QAB(A)+R(D),XP(c)
- P(c);OGATE,P_SPINP(c),XR(D)::QAB1(A),XP(c)
- Refutation
- Q(g);XS(J)
- Try
- Q(A);N_PINP(a)
- Threat
- DUALS(2)
- Vars
- B(e);XS(F)::QAR1(A)
- S(b);::QAR1(A)
- Q(g);::QAR1(A)
- Q(g);P_PINR(D)::QAR1(A)
- B(e);P_PINR(D)::QAR1(A)
- Refutation
- S(b);
- Try
- Actual
- S(F);XP(a)
- Threat
- QAB(A)+S(F)
- Vars
- Q(g);CHECK::QAB(A)+S(F),DCHECK,XQ(g)
- B(e);CHECK::QAB(A)+S(F),XB(e)
- K(d);P_SPINB(e),P_SPINQ(g),S_FLIGHT::S(F)
- Q(g);N_GUARD,XS(J)::R(D),XP(c)
- P(c);OGATE,P_SPINP(c),XS(F)::QAB1(A),XP(c)
- Q(g);::QAB(A)+S(F),DCHECK
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).