MESON Chess Problem Database
Problem Display
PID: 251720 (1q4Q1/1NB5/6RP/N2ppp2/3k1n2/n2p1B2/2pP3K/1r2R3 w - - 0 1)
Witt, Andreas
Die Schwalbe, 2021
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Qa7
- 2.Bxe5#
- 1...Qa8
- 2.Bxe5#
- 1...Qc8
- 2.Bxe5#
- 1...Qd8
- 2.Bxe5#
- 1...Qf8
- 2.Bxe5#
- 1...Qxg8
- 2.Bxe5#
- 1...Ra1
- 2.Bb6#
- 1...Rc1
- 2.Bb6#
- 1...Rd1
- 2.Bb6#
- 1...Rxe1
- 2.Bb6#
- 1...Rb6
- 2.Bxb6#
- 1...Sc4
- 2.Sc6#
- 1...Sb5
- 2.Bb6#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sh5
- 2.Qxd5#
- 1...Sxg6
- 2.Qxd5#
- 1...e4
- 2.Qg7#
- 1...Qa7
- Tries
- 1.Bxb8?
- threat
- 2.Bxe5#
- 1...Rxe1
- 2.Ba7#
- 1...Sxg6
- 2.Qxd5#
- 1...Sc4
- 2.Sc6#
- 1...Se2
- 2.Qxd5#
- 1...e4
- 2.Qg7#
- 2.Qh8#
- 1...Rxb7!
- threat
- 1.Re4+?
- 1...dxe4
- 2.Sc6#
- 1...fxe4!
- 1...dxe4
- 1.Rb6?
- threat
- 2.Qg1#
- 1...Qxg8
- 2.Bxe5#
- 1...Sc4
- 2.Sc6#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...e4
- 2.Qg7#
- 1...Rxe1!
- threat
- 1.Rc6?
- threat
- 2.Qg1#
- 1...Qxg8
- 2.Bxe5#
- 1...Rxe1
- 2.Sb3#
- 2.Bb6#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...e4
- 2.Qg7#
- 1...Sc4!
- threat
- 1.Rd6?
- threat
- 2.Qg1#
- 1...Rxe1
- 2.Bb6#
- 1...e4
- 2.Qg7#
- 1...Sc4
- 2.Sc6#
- 1...Se2
- 2.Rxd5#
- 2.Qxd5#
- 1...Sg2
- 2.Rxd5#
- 2.Qxd5#
- 1...Sh3
- 2.Rxd5#
- 2.Qxd5#
- 1...Sg6
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxg8!
- threat
- 1.Rf6?
- threat
- 2.Qg1#
- 1...Qxg8
- 2.Bxe5#
- 1...Rxe1
- 2.Bb6#
- 1...Sc4
- 2.Sc6#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...e4!
- threat
- 1.Bxb8?
- Keys
- 1.Ra6!
- threat
- 2.Qg1#
- 1...Qxg8
- 2.Bxe5#
- 1...Rxe1
- 2.Bb6#
- 1...Sc4
- 2.Sc6#
- 1...Se2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...Sh3
- 2.Qxd5#
- 1...Sg6
- 2.Qxd5#
- 1...e4
- 2.Qg7#
- threat
- 1.Ra6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 11
- Sets
- Q(j);N_GUARD::B(I),XP(h)
- Q(j);N_GUARD,XQ(J)::B(I),XP(h)
- R(a);N_GUARD::B(I)
- R(a);N_GUARD,XR(A)::B(I)
- R(a);N_GUARD::B(I),XR(a)
- S(c);SBLOCK::S(E)
- S(c);S_CUTR(a)::B(I)
- S(f);N_GUARD::QAR1(J),XP(g)
- S(f);N_GUARD,XR(F)::QAR1(J),XP(g)
- P(h);OGATEB::QAB(J)
- Tries
- Try
- B(I);XQ(j)
- Threat
- B(I),XP(h)
- Vars
- R(a);N_GUARD,XR(A)::B(I)
- S(f);N_GUARD,XR(F)::QAR1(J),XP(g)
- S(c);SBLOCK::S(E)
- S(f);N_GUARD::QAR1(J),XP(g)
- Refutation
- R(a);XS(H)
- Try
- R(A);CHECK
- Vars
- P(g);XR(A)::S(E)
- Refutation
- P(i);XR(A)
- Try
- R(F);
- Threat
- QAB(J)
- Vars
- Q(j);N_GUARD,XQ(J)::B(I),XP(h)
- S(c);SBLOCK::S(E)
- S(f);N_GUARD::QAR1(J),XP(g)
- P(h);OGATEB::QAB(J)
- Refutation
- R(a);XR(A)
- Try
- R(F);
- Threat
- QAB(J)
- Vars
- Q(j);N_GUARD,XQ(J)::B(I),XP(h)
- S(f);N_GUARD::QAR1(J),XP(g)
- P(h);OGATEB::QAB(J)
- Refutation
- S(c);
- Try
- R(F);P_PINP(g)
- Threat
- QAB(J)
- Vars
- R(a);N_GUARD,XR(A)::B(I)
- P(h);OGATEB::QAB(J)
- S(c);SBLOCK::S(E)
- Refutation
- Q(j);XQ(J)
- Try
- R(F);
- Threat
- QAB(J)
- Vars
- Q(j);N_GUARD,XQ(J)::B(I),XP(h)
- R(a);N_GUARD,XR(A)::B(I)
- S(c);SBLOCK::S(E)
- S(f);N_GUARD::QAR1(J),XP(g)
- Refutation
- P(h);
- Try
- Actual
- R(F);
- Threat
- QAB(J)
- Vars
- Q(j);N_GUARD,XQ(J)::B(I),XP(h)
- R(a);N_GUARD,XR(A)::B(I)
- S(c);SBLOCK::S(E)
- S(f);N_GUARD::QAR1(J),XP(g)
- P(h);OGATEB::QAB(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).