MESON Chess Problem Database
Problem Display
PID: 67091 (2B1r1N1/4p2Q/5p1P/2P1k2K/2P1prpP/4P1N1/8/8 w - - 0 1)
Stocchi, Ottavio
Caissa, 1954
#2
10 + 7
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Qxe4#
- 1...Rf2
- 2.Qxe4#
- 1...Rf3
- 2.Qxe4#
- 1...Rf5+
- 2.Qxf5#
- 1...Rxc8
- 2.Qxe7#
- 1...Rd8
- 2.Qxe7#
- 1...Rf8
- 2.Qxe7#
- 1...Rxg8
- 2.Qxe7#
- 1...f5
- 2.Qg7#
- 2.Qh8#
- 1...e6
- 2.Qc7#
- 1...Rf1
- Tries
- 1.Sxe7?
- threat
- 2.Sc6#
- 2.Sg6#
- 1...Rf5+
- 2.Qxf5#
- 1...Rxe7
- 2.Qxe7#
- 1...f5
- 2.Qg7#
- 1...Rg8
- 2.Sc6#
- 1...Rxc8!
- threat
- 1.Bxg4?
- 1...Rf5+
- 2.Qxf5#
- 1...Rxg4
- 2.Qf5#
- 1...Rxg8
- 2.Qxe7#
- 1...Rf1
- 2.Qxe4#
- 1...Rf2
- 2.Qxe4#
- 1...Rf3
- 2.Qxe4#
- 1...Ra8
- 2.Qxe7#
- 1...Rb8
- 2.Qxe7#
- 1...Rc8
- 2.Qxe7#
- 1...Rd8
- 2.Qxe7#
- 1...Rf8
- 2.Qxe7#
- 1...e6
- 2.Qc7#
- 1...f5!
- 1...Rf5+
- 1.Bd7?
- 1...Rf5+
- 2.Qxf5#
- 1...Rxg8
- 2.Qxe7#
- 1...Rf1
- 2.Qxe4#
- 1...Rf2
- 2.Qxe4#
- 1...Rf3
- 2.Qxe4#
- 1...Ra8
- 2.Qxe7#
- 1...Rb8
- 2.Qxe7#
- 1...Rc8
- 2.Qxe7#
- 1...Rd8
- 2.Qxe7#
- 1...Rf8
- 2.Qxe7#
- 1...f5
- 2.Qg7#
- 2.Qh8#
- 1...e6!
- 1...Rf5+
- 1.Qf7?
- threat
- 2.Qd5#
- 2.Qe6#
- 1...Rxc8
- 2.Qd5#
- 2.Qxe7#
- 1...Rd8
- 2.Qe6#
- 2.Qxe7#
- 1...e6
- 2.Qc7#
- 1...Rf5+!
- threat
- 1.Sxe7?
- Keys
- 1.Sxf6!
- 1...Rf5+
- 2.Qxf5#
- 1...Kxf6
- 2.Qg7#
- 1...Rxf6
- 2.Qxe4#
- 1...Rxc8
- 2.Qxe7#
- 1...exf6
- 2.Qc7#
- 1...Rf1
- 2.Sxg4#
- 1...Rf2
- 2.Sxg4#
- 1...Rf3
- 2.Sxg4#
- 1...Rd8
- 2.Qxe7#
- 1...Rf8
- 2.Qxe7#
- 1...Rg8
- 2.Qxe7#
- 1...Rh8
- 2.Qxe7#
- 1...e6
- 2.Sd7#
- 1...Rf5+
- 1.Sxf6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAR1(H),XP(a)
- R(b);CHECK,N_GUARD::QAR1(H),XR(b)
- R(g);N_GUARD,XB(I)::QAR2(H),XP(f)
- R(g);N_GUARD::QAR2(H),XP(f)
- R(g);N_GUARD,XS(J)::QAR2(H),XP(f)
- P(f);OGATE::QAB(H)
- Tries
- Try
- S(J);XP(f)
- Threat
- DUALS(2)
- Vars
- R(b);CHECK,N_GUARD::QAR1(H),XR(b)
- R(g);OGATE,XS(J)::QAR2(H),XR(g)
- P(e);OGATEB::QAB(H)
- R(g);::S(J)
- Refutation
- R(g);XB(I)
- Try
- B(I);XP(c)
- Vars
- R(b);CHECK,N_GUARD::QAR1(H),XR(b)
- R(b);N_GUARD,XB(I)::QAR1(H)
- R(g);N_GUARD,XS(J)::QAR2(H),XP(f)
- R(b);N_GUARD::QAR1(H),XP(a)
- R(g);N_GUARD::QAR2(H),XP(f)
- P(f);OGATE::QAB(H)
- Refutation
- P(e);
- Try
- B(I);
- Vars
- R(b);CHECK,N_GUARD::QAR1(H),XR(b)
- R(g);N_GUARD,XS(J)::QAR2(H),XP(f)
- R(b);N_GUARD::QAR1(H),XP(a)
- R(g);N_GUARD::QAR2(H),XP(f)
- Refutation
- P(f);
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- P(f);OGATE::QAB(H)
- Refutation
- R(b);CHECK
- Try
- Actual
- S(J);XP(e)
- Vars
- R(b);CHECK,N_GUARD::QAR1(H),XR(b)
- K(d);OGATEB,S_FLIGHT,XS(J)::QAB1(H)
- R(b);N_GUARD,SBLOCK,XS(J)::QAR1(H),XP(a)
- R(g);N_GUARD,XB(I)::QAR2(H),XP(f)
- P(f);OGATE,SBLOCK,XS(J)::QAB(H)
- R(b);N_GUARD::S(J),XP(c)
- R(g);N_GUARD::QAR2(H),XP(f)
- P(f);SBLOCK::S(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).