MESON Chess Problem Database
Problem Display
PID: 164832 (1K2k3/3R1R2/1N1p1p2/4r3/4N3/8/4Qr2/3q4 w - - 0 1)
Pirrone, Santi
Il Due Mosse, 1959
#2
6 + 6
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Qc2
- 2.Sxd6#
- 1...Qxe2
- 2.Sxd6#
- 1...Qb3
- 2.Sxd6#
- 1...Qa4
- 2.Sxd6#
- 1...Qa1
- 2.Sxd6#
- 1...Qb1
- 2.Sxd6#
- 1...Qc1
- 2.Sxd6#
- 1...Qe1
- 2.Sxd6#
- 1...Qf1
- 2.Sxd6#
- 1...Qg1
- 2.Sxd6#
- 1...Qh1
- 2.Sxd6#
- 1...Rxe2
- 2.Sxf6#
- 1...Rg2
- 2.Sxf6#
- 1...Rh2
- 2.Sxf6#
- 1...Rxe4
- 2.Qxe4#
- 1...Ra5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rb5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rc5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rd5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rf5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rg5
- 2.Sxd6#
- 2.Sxf6#
- 1...Rh5
- 2.Sxd6#
- 2.Sxf6#
- 1...d5
- 2.Sd6#
- 1...f5
- 2.Sf6#
- 1...Qc2
- Tries
- 1.Qc4?
- threat
- 2.Qc8#
- 1...Qc2
- 2.Sxd6#
- 1...Qc1
- 2.Sxd6#
- 1...Rc2
- 2.Sxf6#
- 1...Rc5
- 2.Qe6#
- 1...Re7!
- threat
- 1.Qc4?
- Keys
- 1.Qg4!
- threat
- 2.Qg8#
- 1...Qxg4
- 2.Sxd6#
- 1...Qg1
- 2.Sxd6#
- 1...Rg2
- 2.Sxf6#
- 1...Rg5
- 2.Qe6#
- threat
- 1.Qg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 15
- Sets
- Q(a);N_GUARD::S(B),XP(d)
- Q(a);N_GUARD,XQ(A)::S(B),XP(d)
- Q(a);N_GUARD,P_PINS(C)::S(B),XP(d)
- R(b);N_GUARD,XQ(A)::S(B),XP(e)
- R(b);N_GUARD::S(B),XP(e)
- R(c);OGATE,P_SPINR(c),XS(B)::QAR(A),XR(c)
- P(d);S_CUTQ(a)::S(B)
- P(e);S_CUTR(b)::S(B)
- Tries
- Try
- Q(A);
- Threat
- QAR2(A)
- Vars
- Q(a);N_GUARD::S(B),XP(d)
- R(b);N_GUARD::S(B),XP(e)
- R(c);N_GUARD::QAR2(A)
- Refutation
- R(c);
- Try
- Actual
- Q(A);
- Threat
- QAR2(A)
- Vars
- Q(a);N_GUARD,XQ(A)::S(B),XP(d)
- Q(a);N_GUARD::S(B),XP(d)
- R(b);N_GUARD::S(B),XP(e)
- R(c);N_GUARD::QAR2(A)
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).