MESON Chess Problem Database
Problem Display
PID: 194074 (2b2R2/B1p5/1R2P1P1/r3k2r/5N2/n1P1pP2/Q7/1B1Kn1N1 w - - 0 1)
Pasqualini, Giulio
L'Italia Scacchistica, 1917
#2
12 + 8
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Qd5#
- 1...Rd5+
- 2.Qxd5#
- 1...Ra6
- 2.Qd5#
- 1...Rxa7
- 2.Qd5#
- 1...Rh1
- 2.Rf5#
- 1...Rh2
- 2.Rf5#
- 1...Rh3
- 2.Rf5#
- 1...Rh4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rh6
- 2.Rf5#
- 1...Rh7
- 2.Rf5#
- 1...Rh8
- 2.Rf5#
- 1...Bxe6
- 2.Rxe6#
- 2.Qxe6#
- 1...Sec2
- 2.Sd3#
- 1...Sg2
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sxf3
- 2.Sxf3#
- 1...Sb5
- 2.Qd5#
- 1...e2+
- 2.Qxe2#
- 1...cxb6
- 2.Bb8#
- 1...c5
- 2.Bb8#
- 2.Qd5#
- 1...c6
- 2.Bb8#
- 1...Ra4
- Tries
- 1.Rc6?
- threat
- 2.Bd4#
- 1...Rd5+
- 2.Qxd5#
- 1...e2+
- 2.Qxe2#
- 1...Rxa7
- 2.Qd5#
- 1...Sxf3
- 2.Sxf3#
- 1...Rf5
- 2.Rxf5#
- 1...Ra4
- 2.Qd5#
- 1...Sec2
- 2.Sd3#
- 1...Sac2
- 2.Qxa5#
- 1...Sb5
- 2.Qd5#
- 1...Rc5!
- threat
- 1.Qc4?
- threat
- 2.Qd4#
- 2.Qe4#
- 2.Qxc7#
- 1...Rd5+
- 2.Qxd5#
- 1...e2+
- 2.Qxe2#
- 1...Rxa7
- 2.Qd5#
- 2.Qd4#
- 2.Qe4#
- 2.Qc5#
- 1...Sxf3
- 2.Sxf3#
- 2.Sd3#
- 2.Qe4#
- 2.Qxc7#
- 1...cxb6
- 2.Bb8#
- 2.Qd4#
- 2.Qc7#
- 1...c6
- 2.Bb8#
- 2.Qd4#
- 1...Rc5
- 2.Qd4#
- 2.Qe4#
- 2.Qxc5#
- 1...Ra4
- 2.Qd5#
- 2.Qc5#
- 2.Qxc7#
- 1...Rh7
- 2.Rf5#
- 2.Qd4#
- 2.Qe4#
- 1...Bb7
- 2.Qd4#
- 2.Qxc7#
- 1...Sec2
- 2.Sd3#
- 2.Qe4#
- 2.Qxc7#
- 1...Sac2
- 2.Qe4#
- 2.Qxc7#
- 1...Sb5
- 2.Qd5#
- 2.Qe4#
- 2.Qc5#
- 1...c5
- 2.Bb8#
- 2.Qd5#
- 2.Qe4#
- 1...Sxc4!
- threat
- 1.Rc6?
- Keys
- 1.Qh2!
- threat
- 2.Qxh5#
- 1...Rd5+
- 2.Sd3#
- 1...e2+
- 2.Qxe2#
- 1...Rxh2
- 2.Rf5#
- 1...Bxe6
- 2.Rxe6#
- 1...Sxf3
- 2.Sxf3#
- 1...cxb6
- 2.Bb8#
- 1...c6
- 2.Bb8#
- 1...Rh3
- 2.Rf5#
- 1...Rh4
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rg5
- 2.Qh8#
- 1...Rh6
- 2.Rf5#
- 1...Rh7
- 2.Rf5#
- 1...Rh8
- 2.Rf5#
- 2.Qxh8#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- R(d);N_GUARD::QAR1(D)
- R(d);CHECK,N_GUARD::QAR1(D),XR(d)
- R(d);N_GUARD,XB(K)::QAR1(D)
- R(f);N_GUARD::R1(L)
- R(f);N_GUARD::R1(L),XR(f)
- S(a);N_GUARD::S(G)
- S(a);N_GUARD::S(G),XS(a)
- S(a);XP(F)::S(C),XS(a)
- S(b);S_CUTR(d)::QAR1(D)
- P(c);CHECK,OGATEB::QAR(D),XP(c)
- P(g);OGATEB,XR(H)::B(K)
- P(g);OGATEB::B(K)
- Tries
- Try
- R(H);
- Threat
- B(K)
- Vars
- R(d);CHECK,N_GUARD::QAR1(D),XR(d)
- P(c);CHECK,OGATEB::QAR(D),XP(c)
- R(d);N_GUARD,XB(K)::QAR1(D)
- S(a);XP(F)::S(C),XS(a)
- R(f);N_GUARD::R1(L),XR(f)
- R(d);N_GUARD::QAR1(D)
- S(a);N_GUARD::S(G)
- S(b);OGATE::QAR(D),XR(d)
- S(b);S_CUTR(d)::QAR1(D)
- Refutation
- R(d);
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(d);CHECK,N_GUARD::QAR1(D),XR(d)
- P(c);CHECK,OGATEB::QAR(D),XP(c)
- Refutation
- S(b);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- QAR(D),XR(f)
- Vars
- R(d);CHECK,SBLOCK::QAB(D)+S(G),DCHECK
- P(c);CHECK,OGATEB::QAR(D),XP(c)
- R(f);N_GUARD,XQ(D)::R1(L)
- B(h);OGATE,XP(I)::R1(H),XB(h)
- S(a);XP(F)::S(C),XS(a)
- P(g);OGATEB,XR(H)::B(K)
- P(g);OGATEB::B(K)
- R(f);N_GUARD::R1(L)
- R(f);N_GUARD::R1(L),XR(f)
- R(f);OGATE::QAB(D)
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).