MESON Chess Problem Database
Problem Display
PID: 91400 (2N2nK1/6P1/2r1pBR1/2np1k1p/5NR1/bp1r2pQ/1p2p3/1B3b2 w - - 0 1)
Hoek, Willem
Probleemblad, 1970
#2
9 + 14
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd6
- 2.Sxd6#
- 1...Rc7
- 2.Sd6#
- 1...Sa4
- 2.Bxd3#
- 1...Sa6
- 2.Bxd3#
- 1...Sb7
- 2.Bxd3#
- 1...Scd7
- 2.Bxd3#
- 1...Rd6
- Tries
- 1.Sxe2?
- threat
- 2.Sxg3#
- 2.Sd4#
- 2.Se7#
- 2.Qxf1#
- 2.Qxh5#
- 1...Rxc8
- 2.Sxg3#
- 2.Sd4#
- 2.Qxf1#
- 2.Qxh5#
- 1...Bxe2
- 2.Se7#
- 2.Qxh5#
- 1...Bxh3
- 2.Sxg3#
- 2.Sd4#
- 2.Se7#
- 1...Sxg6
- 2.Rf4#
- 1...hxg4
- 2.Qxg4#
- 1...Rc7
- 2.Sxg3#
- 2.Sd4#
- 2.Sd6#
- 2.Qxf1#
- 2.Qxh5#
- 1...Bg2
- 2.Sxg3#
- 2.Sd4#
- 2.Se7#
- 2.Qxh5#
- 1...Sa4
- 2.Sxg3#
- 2.Sd4#
- 2.Bxd3#
- 2.Qxf1#
- 2.Qxh5#
- 1...Se4
- 2.R4g5#
- 1...Sa6
- 2.Sxg3#
- 2.Sd4#
- 2.Bxd3#
- 2.Qxf1#
- 2.Qxh5#
- 1...Sb7
- 2.Sxg3#
- 2.Sd4#
- 2.Bxd3#
- 2.Qxf1#
- 2.Qxh5#
- 1...Scd7
- 2.Sxg3#
- 2.Sd4#
- 2.Bxd3#
- 2.Qxf1#
- 2.Qxh5#
- 1...Sh7
- 2.Sxg3#
- 2.Sd4#
- 2.Se7#
- 2.Qxf1#
- 1...g2
- 2.Sg3#
- 2.Sd4#
- 2.Se7#
- 2.Qf3#
- 2.Qxh5#
- 1...d4
- 2.Sxg3#
- 2.Sxd4#
- 2.Se7#
- 2.Qxf1#
- 2.Qxh5#
- 1...h4
- 2.Sd4#
- 2.Se7#
- 2.Qxf1#
- 1...e5!
- threat
- 1.Sg2?
- threat
- 2.Se3#
- 2.Sh4#
- 2.Se7#
- 2.Qxh5#
- 1...Rxc8
- 2.Se3#
- 2.Sh4#
- 2.Qxh5#
- 1...Bxg2
- 2.Se7#
- 2.Qxh5#
- 1...Sxg6
- 2.Rf4#
- 1...hxg4
- 2.Qxg4#
- 1...e1Q
- 2.Sh4#
- 2.Se7#
- 2.Qxh5#
- 1...e1R
- 2.Sh4#
- 2.Se7#
- 2.Qxh5#
- 1...Rc7
- 2.Se3#
- 2.Sh4#
- 2.Sd6#
- 2.Qxh5#
- 1...Sa4
- 2.Se3#
- 2.Sh4#
- 2.Bxd3#
- 2.Qxh5#
- 1...Se4
- 2.Sh4#
- 2.Rxg3#
- 2.R4g5#
- 1...Sa6
- 2.Se3#
- 2.Sh4#
- 2.Bxd3#
- 2.Qxh5#
- 1...Sb7
- 2.Se3#
- 2.Sh4#
- 2.Bxd3#
- 2.Qxh5#
- 1...Scd7
- 2.Se3#
- 2.Sh4#
- 2.Bxd3#
- 2.Qxh5#
- 1...Sh7
- 2.Se3#
- 2.Sh4#
- 2.Se7#
- 1...d4
- 2.Sh4#
- 2.Se7#
- 2.Qxh5#
- 1...h4
- 2.Se3#
- 2.Sxh4#
- 2.Se7#
- 1...e5!
- threat
- 1.Sxd3?
- threat
- 2.Sxc5#
- 2.Se7#
- 2.Qxh5#
- 1...Rxc8
- 2.Sxc5#
- 2.Qxh5#
- 1...Bxh3
- 2.Sxc5#
- 2.Se7#
- 1...Sxd3
- 2.Bxd3#
- 2.Qxh5#
- 1...Sxg6
- 2.Rf4#
- 1...hxg4
- 2.Qxg4#
- 1...e1Q
- 2.Se7#
- 2.Qxh5#
- 1...e1S
- 2.Se7#
- 2.Qxh5#
- 1...e1B
- 2.Se7#
- 2.Qxh5#
- 1...e1R
- 2.Se7#
- 2.Qxh5#
- 1...Rc7
- 2.Sxc5#
- 2.Sd6#
- 2.Qxh5#
- 1...Bg2
- 2.Se7#
- 2.Qxh5#
- 1...Sa4
- 2.Sc5#
- 2.Qxh5#
- 1...Se4
- 2.R4g5#
- 1...Sa6
- 2.Sc5#
- 2.Qxh5#
- 1...Sb7
- 2.Sc5#
- 2.Qxh5#
- 1...Scd7
- 2.Sc5#
- 2.Qxh5#
- 1...Sh7
- 2.Sxc5#
- 2.Se7#
- 1...d4
- 2.Se7#
- 2.Qxh5#
- 1...h4
- 2.Sxc5#
- 2.Se7#
- 1...e5!
- threat
- 1.Sxh5?
- threat
- 2.Sxg3#
- 2.Se7#
- 2.R6g5#
- 1...Rxc8
- 2.Sxg3#
- 2.R6g5#
- 1...Sxg6
- 2.Rf4#
- 1...e1Q
- 2.Se7#
- 2.R6g5#
- 1...e1B
- 2.Se7#
- 2.R6g5#
- 1...Rc7
- 2.Sxg3#
- 2.Sd6#
- 2.R6g5#
- 1...Sa4
- 2.Sxg3#
- 2.Bxd3#
- 2.R6g5#
- 1...Se4
- 2.R4g5#
- 1...Sa6
- 2.Sxg3#
- 2.Bxd3#
- 2.R6g5#
- 1...Sb7
- 2.Sxg3#
- 2.Bxd3#
- 2.R6g5#
- 1...Scd7
- 2.Sxg3#
- 2.Bxd3#
- 2.R6g5#
- 1...Sh7
- 2.Sxg3#
- 2.Se7#
- 1...g2
- 2.Sg3#
- 2.Se7#
- 2.R6g5#
- 2.Qf3#
- 1...e5!
- threat
- 1.Bxd3+?
- 1...Se4
- 2.Qxh5#
- 1...Sxd3!
- 1...Se4
- 1.R6g5+?
- 1...Kxf6
- 2.Sxh5#
- 2.gxf8Q#
- 2.gxf8R#
- 1...Ke4!
- 1...Kxf6
- 1.Sxe2?
- Keys
- 1.Sxe6!
- threat
- 2.Sd4#
- 1...Kxe6
- 2.Re4#
- 1...Rxe6
- 2.Qxh5#
- 1...Scxe6
- 2.Bxd3#
- 1...Sfxe6
- 2.Se7#
- 1...Sxg6
- 2.Rf4#
- 1...hxg4
- 2.Qxg4#
- 1...Se4
- 2.R4g5#
- 1...d4
- 2.Sxd4#
- threat
- 1.Sxe6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 6
- Sets
- R(l);N_GUARD::S(H),XR(l)
- R(l);N_GUARD::S(H)
- S(h);N_GUARD::B(A),XR(f)
- Tries
- Try
- S(C);XP(c)
- Threat
- DUALS(5)
- Vars
- S(n);SBLOCK,XR(F)::QAB(B)+R(D),DCHECK
- P(k);OGATE,P_SPINP(k),XR(D)::QAB1(B),XP(k)
- S(h);N_SPINR(f),SBLOCK::QAB(B)+R(D),DCHECK
- Refutation
- P(m);
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- S(n);SBLOCK,XR(F)::QAB(B)+R(D),DCHECK
- P(k);OGATE,P_SPINP(k),XR(D)::QAB1(B),XP(k)
- Refutation
- P(m);
- Try
- S(C);XR(f)
- Threat
- DUALS(3)
- Vars
- S(n);SBLOCK,XR(F)::QAB(B)+R(D),DCHECK
- P(k);OGATE,P_SPINP(k),XR(D)::QAB1(B),XP(k)
- S(h);SBLOCK::QAB(B)+R(D),DCHECK
- Refutation
- P(m);
- Try
- S(C);XP(k)
- Threat
- DUALS(3)
- Vars
- S(n);SBLOCK,XR(F)::QAB(B)+R(D),DCHECK
- S(h);N_SPINR(f),SBLOCK::QAB(B)+R(D),DCHECK
- Refutation
- P(m);
- Try
- B(A);CHECK,XR(f)
- Vars
- S(h);P_SPINS(h)::QAR2(B),XP(k)
- Refutation
- S(h);XB(A)
- Try
- R(F);CHECK
- Refutation
- K(j);S_FLIGHT
- Try
- Actual
- S(C);XP(m)
- Threat
- S(C)
- Vars
- K(j);N_SPINR(f),S_FLIGHT,XS(C)::QAB(B)+R(D),DCHECK
- R(l);SBLOCK,XS(C)::QAR2(B),XP(k)
- S(h);N_GUARD,SBLOCK,XS(C)::B(A),XR(f)
- S(n);SBLOCK,XS(C)::S(H)
- S(n);SBLOCK,XR(F)::QAB(B)+R(D),DCHECK
- P(k);OGATE,P_SPINP(k),XR(D)::QAB1(B),XP(k)
- S(h);N_SPINR(f),SBLOCK::QAB(B)+R(D),DCHECK
- P(i);::S(C),XP(i)
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).