MESON Chess Problem Database
Problem Display
PID: 261892 (KN4Q1/8/Pk1P4/RB1Pp3/pPpn3b/r6q/1Nr5/6B1 w - - 0 1)
Pirrone, Santi
2nd Prize, Dansk Skakproblem Klub 055. TT, 1988-1989
#2
11 + 9
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Sd7#
- 1...Qg2
- 2.Sd7#
- 1...Qd7
- 2.Sxd7#
- 1...Qh1
- 2.Sd7#
- 1...Qh2
- 2.Sd7#
- 1...Qb3
- 2.Sd7#
- 1...Qc3
- 2.Sd7#
- 1...Qd3
- 2.Sd7#
- 1...Qe3
- 2.Sd7#
- 1...Qf3
- 2.Sd7#
- 1...Qg3
- 2.Sd7#
- 1...Rd2
- 2.Sxc4#
- 1...Re2
- 2.Sxc4#
- 1...Rf2
- 2.Sxc4#
- 1...Rg2
- 2.Sxc4#
- 1...Rh2
- 2.Sxc4#
- 1...Rb3
- 2.Sxa4#
- 1...Rc3
- 2.Sxa4#
- 1...Rd3
- 2.Sxa4#
- 1...Re3
- 2.Sxa4#
- 1...Rf3
- 2.Sxa4#
- 1...Rg3
- 2.Sxa4#
- 1...Be1
- 2.Qd8#
- 1...Bf2
- 2.Qd8#
- 1...Bg3
- 2.Qd8#
- 1...Bd8
- 2.Qxd8#
- 1...c3
- 2.Sc4#
- 1...e4
- 2.Bxd4#
- 1...Qf1
- Tries
- 1.Bxa4?
- threat
- 2.Rb5#
- 1...Rxa4
- 2.Sxa4#
- 1...Qd7
- 2.Sxd7#
- 1...Qe3
- 2.Sd7#
- 1...Rf2
- 2.Sxc4#
- 1...Bf2
- 2.Qd8#
- 1...Re3!
- threat
- 1.Bxc4?
- threat
- 2.Rb5#
- 1...Rxc4
- 2.Sxc4#
- 1...Qd7
- 2.Sxd7#
- 1...Qe3
- 2.Sd7#
- 1...Re3
- 2.Sxa4#
- 1...Bf2
- 2.Qd8#
- 1...Rf2!
- threat
- 1.Bd7?
- threat
- 2.Rb5#
- 1...Qxd7
- 2.Sxd7#
- 1...Rf2
- 2.Sxc4#
- 1...Re3
- 2.Sxa4#
- 1...Bf2
- 2.Qd8#
- 1...Qe3!
- threat
- 1.Be8?
- threat
- 2.Rb5#
- 1...Qd7
- 2.Sxd7#
- 1...Qe3
- 2.Sd7#
- 1...Rf2
- 2.Sxc4#
- 1...Re3
- 2.Sxa4#
- 1...Bf2!
- threat
- 1.Qf7?
- threat
- 2.Qa7#
- 2.Qb7#
- 2.Qc7#
- 1...Qd7
- 2.Sxd7#
- 1...Qc8
- 2.Qa7#
- 1...Bd8
- 2.Qa7#
- 2.Qb7#
- 1...Be7!
- threat
- 1.Qh7?
- threat
- 2.Qa7#
- 2.Qb7#
- 2.Qc7#
- 1...Qd7
- 2.Sxd7#
- 1...Qc8
- 2.Qa7#
- 1...Bd8
- 2.Qa7#
- 2.Qb7#
- 1...Be7!
- threat
- 1.Qg7?
- threat
- 2.Qa7#
- 2.Qb7#
- 2.Qc7#
- 1...Qd7
- 2.Sxd7#
- 1...Qc8
- 2.Qa7#
- 1...Bd8
- 2.Qa7#
- 2.Qb7#
- 1...Be7!
- threat
- 1.Qc8?
- threat
- 2.Qb7#
- 2.Qc5#
- 2.Qc6#
- 2.Qc7#
- 1...Qd7
- 2.Sxd7#
- 2.Qc5#
- 1...Qe3
- 2.Sd7#
- 2.Qb7#
- 2.Qc5#
- 2.Qc7#
- 1...Rf2
- 2.Sxc4#
- 2.Qb7#
- 2.Qc5#
- 2.Qc7#
- 1...Re3
- 2.Sxa4#
- 2.Qb7#
- 2.Qc5#
- 2.Qc7#
- 1...Bf2
- 2.Qb7#
- 2.Qc5#
- 2.Qc7#
- 2.Qd8#
- 1...Bd8
- 2.Qb7#
- 2.Qc5#
- 2.Qc6#
- 2.Qxd8#
- 1...Qxc8!
- threat
- 1.Qe8?
- threat
- 2.Qc6#
- 1...Qd7
- 2.Sxd7#
- 1...Qe3
- 2.Sd7#
- 1...Rf2
- 2.Sxc4#
- 1...Re3
- 2.Sxa4#
- 1...Bf2
- 2.Qd8#
- 1...Qc8!
- threat
- 1.Bxa4?
- Keys
- 1.Bc6!
- threat
- 2.Rb5#
- 1...Qe3
- 2.Sd7#
- 1...Rf2
- 2.Sxc4#
- 1...Re3
- 2.Sxa4#
- 1...Bf2
- 2.Qd8#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 24
- Sets
- Q(c);N_GUARD::S(J)
- Q(c);N_GUARD,P_PINP(F)::S(J)
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(a);N_GUARD::S(B),XP(e)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- R(b);N_GUARD::S(B),XP(d)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- B(g);N_GUARD::QAB(K)
- B(g);N_GUARD,N_SPINS(f)::QAB(K)
- B(g);N_GUARD::QAB(K),XB(g)
- P(e);S_CUTR(a)::S(B)
- P(h);N_GUARD::B(A),XS(f)
- Tries
- Try
- B(E);XP(d)
- Threat
- R1(D)
- Vars
- R(b);XB(E)::S(B),XR(b)
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- B(g);N_GUARD,N_SPINS(f)::QAB(K)
- Refutation
- R(b);N_SPINS(f)
- Try
- B(E);XP(e)
- Threat
- R1(D)
- Vars
- R(a);XB(E)::S(B),XR(a)
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- B(g);N_GUARD,N_SPINS(f)::QAB(K)
- Refutation
- R(a);N_SPINS(f)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- Q(c);XB(E)::S(J),XQ(c)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- B(g);N_GUARD,N_SPINS(f)::QAB(K)
- Refutation
- Q(c);N_SPINS(f)
- Try
- B(E);
- Threat
- R1(D)
- Vars
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- Refutation
- B(g);N_SPINS(f)
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);P_PINS(J)::QAB1(K)
- Refutation
- B(g);
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);P_PINS(J)::QAB1(K)
- Refutation
- B(g);
- Try
- Q(K);
- Threat
- DUALS(3)
- Vars
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);P_PINS(J)::QAB1(K)
- Refutation
- B(g);
- Try
- Q(K);
- Threat
- DUALS(4)
- Refutation
- Q(c);P_PINS(J),XQ(K)
- Try
- Q(K);
- Threat
- QAR1(K)
- Vars
- Q(c);N_GUARD::S(J),XQ(c)
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- B(g);N_GUARD,N_SPINS(f)::QAB(K)
- Refutation
- Q(c);P_PINS(J)
- Try
- Actual
- B(E);
- Threat
- R1(D)
- Vars
- Q(c);N_GUARD,N_SPINS(f)::S(J)
- R(a);N_GUARD,N_SPINS(f)::S(B),XP(e)
- R(b);N_GUARD,N_SPINS(f)::S(B),XP(d)
- B(g);N_GUARD,N_SPINS(f)::QAB(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).