MESON Chess Problem Database
Problem Display
PID: 136766 (3Rb1nK/r4knN/3P1B1p/4Q2p/5N2/2p3p1/q7/8 w - - 0 1)
Paslack, Rainer
Die Schwalbe, 2010
#2
7 + 10
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Rf8#
- 1...Bb5
- 2.Rf8#
- 1...Bc6
- 2.Rf8#
- 1...Bd7
- 2.Rf8#
- 1...Sf5
- 2.Qxe8#
- 1...Se6
- 2.Qxh5#
- 1...Sxf6
- 2.Qxf6#
- 1...Ba4
- Tries
- 1.Sg5+?
- 1...Kf8
- 2.Sg6#
- 1...hxg5!
- 1...Kf8
- 1.Bg5?
- threat
- 2.Qxg7#
- 1...Sf5
- 2.Qxe8#
- 1...Sf6
- 2.Qxf6#
- 1...Se6!
- threat
- 1.Be7?
- threat
- 2.Qxg7#
- 1...Se6
- 2.Qxh5#
- 1...Sf6
- 2.Qxf6#
- 1...Sf5!
- threat
- 1.Bxg7?
- threat
- 2.Qxh5#
- 2.Qxe8#
- 1...Qb1
- 2.Qd5#
- 2.Qe6#
- 2.Qxe8#
- 1...Qd5
- 2.Qxd5#
- 2.Qxe8#
- 1...Qe6
- 2.Qxe6#
- 1...Qc2
- 2.Qd5#
- 2.Qe6#
- 2.Qxe8#
- 1...Qh2
- 2.Qd5#
- 2.Qe6#
- 2.Qxe8#
- 1...Qa4
- 2.Qd5#
- 2.Qxh5#
- 2.Qe6#
- 1...Qa5
- 2.Qe6#
- 2.Qxe8#
- 1...Ra5
- 2.Qxe8#
- 1...Re7
- 2.Qxh5#
- 1...Ba4
- 2.Rf8#
- 2.Qxh5#
- 1...Bb5
- 2.Rf8#
- 2.Qxh5#
- 1...Bc6
- 2.Rf8#
- 2.Qxh5#
- 1...Bd7
- 2.Rf8#
- 2.Qxh5#
- 1...Sf6
- 2.Qxf6#
- 1...Se7
- 2.Qf6#
- 1...h4
- 2.Qh5#
- 2.Qxe8#
- 1...Qe2!
- threat
- 1.Rxe8?
- threat
- 2.Rf8#
- 1...Sxe8
- 2.Qxh5#
- 1...Se6
- 2.Qxh5#
- 1...Ra8!
- threat
- 1.Qd5+?
- 1...Se6
- 2.Qxh5#
- 1...Qxd5!
- 1...Se6
- 1.Qg5?
- threat
- 2.Qg6#
- 2.Qxg7#
- 1...Qb1
- 2.Qxg7#
- 1...Qc2
- 2.Qxg7#
- 1...Sf5
- 2.Qxh5#
- 2.Qg6#
- 2.Qxg8#
- 1...Se6
- 2.Qxh5#
- 2.Qg6#
- 2.Qxg8#
- 1...Se7
- 2.Qxg7#
- 1...hxg5!
- threat
- 1.Sg5+?
- Keys
- 1.Bh4!
- threat
- 2.Qxg7#
- 1...Sf5
- 2.Qxe8#
- 1...Se6
- 2.Qxh5#
- 1...Sf6
- 2.Qxf6#
- threat
- 1.Bh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(i);OGATE::R1(F)
- S(h);N_GUARD::QAB1(B),XB(i)
- S(h);N_GUARD::QAB(B),XP(d)
- S(j);OGATE,XB(D)::QAR1(B),XS(j)
- Tries
- Try
- S(E);CHECK
- Vars
- K(g);P-FLIGHT,P_SPINB(i)::S(A)
- Refutation
- P(e);XS(E)
- Try
- B(D);
- Threat
- QAR1(B),XS(h)
- Vars
- S(h);N_GUARD::QAB1(B),XB(i)
- S(j);N_GUARD::QAR1(B),XS(j)
- Refutation
- S(h);
- Try
- B(D);
- Threat
- QAR1(B),XS(h)
- Vars
- S(h);N_GUARD::QAB(B),XP(d)
- S(j);N_GUARD::QAR1(B),XS(j)
- Refutation
- S(h);
- Try
- B(D);XS(h)
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD::QAB1(B),XQ(a)
- R(f);::QAB1(B),XB(i)
- R(f);::QAB(B),XP(d)
- S(j);N_GUARD::QAR1(B),XS(j)
- S(j);N_GUARD::QAR1(B)
- Refutation
- Q(a);
- Try
- R(F);XB(i)
- Threat
- R1(F)
- Vars
- S(h);N_GUARD,SBLOCK,XR(F)::QAB(B),XP(d)
- S(h);N_GUARD::QAB(B),XP(d)
- Refutation
- R(f);
- Try
- Q(B);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAB(B),XP(d)
- Refutation
- Q(a);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- Q(a);::QAR1(B),XS(h)
- S(j);::QAR1(B),XS(h)
- Refutation
- P(e);XQ(B)
- Try
- Actual
- B(D);
- Threat
- QAR1(B),XS(h)
- Vars
- S(h);N_GUARD::QAB1(B),XB(i)
- S(h);N_GUARD::QAB(B),XP(d)
- S(j);N_GUARD::QAR1(B),XS(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).