MESON Chess Problem Database
Problem Display
PID: 149201 (1Nb5/b1n2Qp1/r3P2r/2P1k1pN/2R1B1P1/p3nP2/K7/3R4 w - - 0 1)
Perrone, Gaspar J
2nd Place, Match: Argentina - Italy, 2009
#2
11 + 10
| 4901 | Best Problems | 2010 |
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Ra4
- 2.Sc6#
- 1...Ra5
- 2.Sc6#
- 1...Rc6
- 2.Sxc6#
- 1...Bb6
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- 1...Bd7
- 2.Sxd7#
- 1...Sxd1
- 2.Qf5#
- 1...Sf1
- 2.Qf5#
- 1...Sc2
- 2.Qf5#
- 1...Sg2
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Sxg4
- 2.Qf5#
- 1...Sed5
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...g6
- 2.Qf6#
- 1...Ra4
- Tries
- 1.Bb1?
- threat
- 2.Re4#
- 1...Sxd1
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- 1...Bxe6!
- threat
- 1.Bc2?
- threat
- 2.Re4#
- 1...Sxd1
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- 1...Bxe6!
- threat
- 1.Bd5?
- threat
- 2.Re4#
- 1...Sxd1
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 2.Qxc7#
- 1...Bxc5!
- threat
- 1.Bc6?
- threat
- 2.Re4#
- 1...Bxe6
- 2.Qxc7#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4!
- threat
- 1.Bb7?
- threat
- 2.Re4#
- 1...Bxb7
- 2.Sd7#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bxe6!
- threat
- 1.Bh7?
- threat
- 2.Re4#
- 1...Sxd1
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- 1...Bxe6!
- threat
- 1.Ba8?
- threat
- 2.Re4#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- 1...Bxe6!
- threat
- 1.Rd5+?
- 1...Sexd5
- 2.Qf5#
- 1...Scxd5!
- 1...Sexd5
- 1.Qxc7+?
- 1...Rd6
- 2.Qxd6#
- 1...Kxe6!
- 1...Rd6
- 1.Qxg7+?
- 1...Rf6
- 2.Qxf6#
- 1...Kxe6!
- 1...Rf6
- 1.Bb1?
- Keys
- 1.Bg6!
- threat
- 2.Re4#
- 1...Bxe6
- 2.Qxg7#
- 1...Sxd1
- 2.Qf5#
- 1...Sxc4
- 2.Qf5#
- 1...Ra4
- 2.Sc6#
- 1...Bb7
- 2.Sd7#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(e);N_GUARD::S(K)
- R(e);N_GUARD::S(K),XR(e)
- B(g);S_CUTR(e)::S(K)
- B(j);N_GUARD::S(K)
- B(j);N_GUARD::S(K),XB(j)
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- S(b);N_GUARD,XP(F)::QAR1(J)
- S(b);N_GUARD::QAR1(J),XS(b)
- P(i);N_GUARD,S_CUTR(f)::QAB1(J)
- Tries
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- B(j);N_GUARD::S(K)
- Refutation
- B(j);P_PINR(D),XP(I)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- B(j);N_GUARD::S(K)
- Refutation
- B(j);P_PINR(D),XP(I)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- Refutation
- B(g);XP(G)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(j);P_PINR(D),SBLOCK,XP(I)::QAB(J),XS(h)
- S(b);N_GUARD,XR(D)::QAR1(J)
- Refutation
- R(e);
- Try
- B(E);
- Threat
- R1(D)
- Vars
- B(j);N_GUARD,XB(E)::S(K)
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- Refutation
- B(j);P_PINR(D),XP(I)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- B(j);N_GUARD::S(K)
- Refutation
- B(j);P_PINR(D),XP(I)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- B(j);N_GUARD::S(K)
- Refutation
- B(j);P_PINR(D),XP(I)
- Try
- R(A);CHECK
- Vars
- S(b);XR(A)::QAR1(J)
- Refutation
- S(h);XR(A)
- Try
- Q(J);CHECK,XS(h)
- Vars
- R(e);N_GUARD,P_SPINR(e)::QAB1(J),XR(e)
- Refutation
- K(c);P-FLIGHT,XP(I)
- Try
- Q(J);CHECK,XP(i)
- Vars
- R(f);N_GUARD,P_SPINR(f)::QAB1(J),XR(f)
- Refutation
- K(c);P-FLIGHT,XP(I)
- Try
- Actual
- B(E);
- Threat
- R1(D)
- Vars
- B(j);P_PINR(D),SBLOCK,XP(I)::QAB(J),XP(i)
- S(b);N_GUARD,XR(A)::QAR1(J)
- S(b);N_GUARD,XR(D)::QAR1(J)
- R(e);N_GUARD::S(K)
- B(j);N_GUARD::S(K)
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).