MESON Chess Problem Database
Problem Display
PID: 93683 (KQB3n1/1p3p2/1Rb2kNP/2N1r2P/2pr1p2/2B2n2/8/6R1 w - - 0 1)
Stocchi, Ottavio
Parallele 50, 1948
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Se4#
- 1...Rd2
- 2.Se4#
- 1...Rd3
- 2.Se4#
- 1...Rde4
- 2.Sxe4#
- 2.Qd6#
- 1...Rdd5
- 2.Se4#
- 1...Rd6
- 2.Qxd6#
- 1...Rd8
- 2.Se4#
- 1...Re1
- 2.Qxf4#
- 1...Re2
- 2.Qxf4#
- 1...Re3
- 2.Qxf4#
- 1...Ree4
- 2.Sxe4#
- 1...Rxc5
- 2.Qd6#
- 1...Red5
- 2.Se4#
- 1...Rf5
- 2.Se4#
- 2.Qd6#
- 1...Rg5
- 2.Se4#
- 2.Qd6#
- 1...Rxh5
- 2.Se4#
- 2.Qd6#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Qxf4#
- 1...Se1
- 2.Qxe5#
- 1...Sxg1
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh4
- 2.Qxe5#
- 1...Sg5
- 2.Qxe5#
- 1...Rd1
- Tries
- 1.Se4+?
- 1...Rdxe4
- 2.Qd6#
- 1...Rexe4!
- 1...Rdxe4
- 1.Rxc6+?
- 1...Rd6
- 2.Se4#
- 2.Rxd6#
- 2.Qxd6#
- 1...Re6
- 2.Qxf4#
- 1...bxc6!
- 1...Rd6
- 1.Qd6+?
- 1...Re6
- 2.Qxf4#
- 1...Rxd6!
- 1...Re6
- 1.Se4+?
- Keys
- 1.Bh3!
- 1...Rxc5
- 2.Qd6#
- 1...Rxh5
- 2.Se4#
- 2.Sd7#
- 2.Qd6#
- 1...Sxg1
- 2.Qxe5#
- 1...Sxh6
- 2.Qh8#
- 1...fxg6
- 2.Qf8#
- 1...Rd1
- 2.Se4#
- 1...Rd2
- 2.Se4#
- 1...Rd3
- 2.Se4#
- 1...Rde4
- 2.Sxe4#
- 2.Sd7#
- 2.Qd6#
- 1...Rdd5
- 2.Se4#
- 1...Rd6
- 2.Qxd6#
- 1...Rd7
- 2.Se4#
- 2.Sxd7#
- 1...Rd8
- 2.Se4#
- 1...Re1
- 2.Sd7#
- 2.Qxf4#
- 1...Re2
- 2.Sd7#
- 2.Qxf4#
- 1...Re3
- 2.Sd7#
- 2.Qxf4#
- 1...Ree4
- 2.Sxe4#
- 2.Sd7#
- 1...Red5
- 2.Se4#
- 1...Rf5
- 2.Qd6#
- 1...Rg5
- 2.Se4#
- 2.Sd7#
- 2.Qd6#
- 1...Re6
- 2.Qxf4#
- 1...Re7
- 2.Qxf4#
- 1...Re8
- 2.Sd7#
- 1...Se1
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sh4
- 2.Qxe5#
- 1...Sg5
- 2.Qxe5#
- 1...Se7
- 2.Qh8#
- 1...Rxc5
- 1.Bh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(c);N_GUARD,P_SPINR(e)::S(C)
- R(c);N_GUARD,N_SPINB(f),P_SPINR(e)::QAR2(I),XR(c)
- R(e);OGATE,P_SPINR(c)::QAR2(I),XP(d)
- R(e);N_GUARD,P_SPINR(c)::S(C),XR(e)
- R(e);N_GUARD,P_SPINR(c),XS(C)::QAR2(I)
- R(e);N_GUARD,P_SPINR(c)::S(C)
- R(e);N_SPINB(f),OGATE,P_SPINR(c)::QAR2(I),XP(d)
- S(a);N_GUARD::QAB1(I),XR(e)
- S(a);N_GUARD,XR(A)::QAB1(I),XR(e)
- Tries
- Try
- S(C);CHECK
- Vars
- R(c);P_SPINR(e),XS(C)::QAR2(I)
- Refutation
- R(e);P_SPINR(c),XS(C)
- Try
- R(E);CHECK,XB(f)
- Vars
- R(e);OGATE,P_SPINR(c)::QAR2(I),XP(d)
- Refutation
- P(h);XR(E)
- Try
- Q(I);CHECK,N_PINB(f)
- Vars
- R(e);OGATE,P_SPINR(c)::QAR2(I),XP(d)
- Refutation
- R(c);P_SPINR(e),XQ(I)
- Try
- Actual
- B(J);
- Vars
- R(e);N_GUARD,P_SPINR(c),XS(C)::QAR2(I)
- S(a);N_GUARD,XR(A)::QAB1(I),XR(e)
- S(j);OGATE,XP(G)::QAB(I)
- P(i);OGATEB,XS(F)::QAR2(I)
- R(c);N_GUARD,P_SPINR(e)::S(C)
- R(c);N_GUARD,N_SPINB(f),P_SPINR(e)::QAR2(I),XR(c)
- R(c);N_GUARD,P_PINQ(I),P_SPINR(e)::S(C)
- R(e);N_GUARD,P_SPINR(c)::S(C)
- R(e);N_GUARD,P_SPINR(c)::QAR2(I)
- R(e);N_SPINB(f),OGATE,P_SPINR(c)::QAR2(I),XP(d)
- R(e);OGATE,P_SPINR(c)::QAR2(I),XP(d)
- R(e);P_PINQ(I),P_SPINR(c)::S(C)
- S(a);N_GUARD::QAB1(I),XR(e)
- S(j);OGATE::QAB(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).