MESON Chess Problem Database
Problem Display
PID: 28092 (2R5/1p3K1B/1B1p1P2/N5Q1/1P3Pp1/NP3bR1/q2kp1p1/2brr1n1 w - - 0 1)
Stocchi, Ottavio
1st Prize, Issaev MT, 1933
#2
12 + 12
| 4872 | Themes-64 | 1957 |
| 6230 | Ajedrez Artistico | 1968 |
| 2048 | Tuxens skakopgaver (Leif C Schmidt) | 1984 |
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Sxb1#
- 1...Qxb3+
- 2.Sxb3#
- 1...Qa1
- 2.Rc2#
- 1...Qc2
- 2.Rxc2#
- 1...Qxa3
- 2.Rc2#
- 1...Bb2
- 2.Rc2#
- 1...Be4
- 2.S5c4#
- 2.f5#
- 1...Bd5+
- 2.Qxd5#
- 1...Bc6
- 2.S3c4#
- 2.S5c4#
- 2.Rd3#
- 2.f5#
- 1...Qb1
- Tries
- 1.Be4?
- threat
- 2.Qd5#
- 2.f5#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bxe4
- 2.S5c4#
- 2.f5#
- 1...Qb1
- 2.Sxb1#
- 2.f5#
- 1...Qa1
- 2.Rc2#
- 2.f5#
- 1...Qb2
- 2.f5#
- 1...Qc2
- 2.Rxc2#
- 2.f5#
- 1...Bb2
- 2.Rc2#
- 2.f5#
- 1...Sh3
- 2.Qd5#
- 1...d5
- 2.Qxd5#
- 2.f5#
- 1...Rf1!
- threat
- 1.Qb5?
- threat
- 2.Qd3#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bd5+
- 2.Qxd5#
- 1...Qb1
- 2.Sxb1#
- 1...Qc2
- 2.Rxc2#
- 1...Be4
- 2.S5c4#
- 2.Be3#
- 1...Rf1!
- threat
- 1.Qc5?
- threat
- 2.Qe3#
- 2.Qd4#
- 2.Qc3#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bd5+
- 2.Qxd5#
- 1...Rf1
- 2.Qc3#
- 1...Qb1
- 2.Sxb1#
- 2.Qe3#
- 2.Qc3#
- 1...Qa1
- 2.Qe3#
- 2.Qc2#
- 1...Qb2
- 2.Qe3#
- 1...Qc2
- 2.Qe3#
- 2.Qxc2#
- 1...Bb2
- 2.Qe3#
- 2.Qc2#
- 1...Be4
- 2.S5c4#
- 2.Qe3#
- 2.Qc3#
- 1...dxc5!
- threat
- 1.Qe5?
- threat
- 2.S3c4#
- 2.S5c4#
- 2.Be3#
- 2.Qc3#
- 2.Qd4#
- 2.Qe3#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bd5+
- 2.Qxd5#
- 1...Qxa3
- 2.Sc4#
- 2.Be3#
- 2.Rc2#
- 2.Qc3#
- 2.Qd4#
- 2.Qe3#
- 1...Bxa3
- 2.Be3#
- 2.Qc3#
- 2.Qd4#
- 2.Qe3#
- 1...Rf1
- 2.Qc3#
- 1...Qb1
- 2.Sxb1#
- 2.S3c4#
- 2.S5c4#
- 2.Be3#
- 2.Qc3#
- 2.Qe3#
- 1...Qa1
- 2.S3c4#
- 2.S5c4#
- 2.Be3#
- 2.Rc2#
- 2.Qe3#
- 1...Qb2
- 2.S3c4#
- 2.S5c4#
- 2.Be3#
- 2.Qe3#
- 1...Qc2
- 2.Be3#
- 2.Rxc2#
- 2.Qe3#
- 1...Bb2
- 2.Be3#
- 2.Rc2#
- 2.Qe3#
- 1...Be4
- 2.S5c4#
- 2.Qc3#
- 1...d5
- 2.Be3#
- 2.Qc3#
- 2.Qd4#
- 2.Qe3#
- 1...dxe5!
- threat
- 1.Qf5?
- threat
- 2.Qd3#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bd5+
- 2.Qxd5#
- 1...Qb1
- 2.Sxb1#
- 1...Qc2
- 2.Rxc2#
- 2.Qxc2#
- 1...Be4
- 2.S5c4#
- 1...Rf1!
- threat
- 1.Be4?
- Keys
- 1.Sc2!
- threat
- 2.Be3#
- 1...Qxb3+
- 2.Sxb3#
- 1...Bd5+
- 2.Qxd5#
- 1...Qxc2
- 2.Rxc2#
- 1...Be4
- 2.f5#
- 1...Bc6
- 2.Sc4#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(e);N_GUARD,N_PINP(B)::S(A),XQ(e)
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- Q(e);N_GUARD,N_PINP(B)::R1(L)
- Q(e);N_GUARD,N_PINP(B)::R1(L),XQ(e)
- Q(e);N_GUARD,N_PINP(B),XS(A)::R1(L)
- B(a);S_CUTQ(e)::R1(L)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- Tries
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- Q(e);N_PINP(B)::QAB(G)+P(E)
- S(d);::QAR(G)
- Refutation
- R(c);
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- Q(e);N_GUARD,N_PINP(B)::S(A),XQ(e)
- Q(e);N_GUARD,N_PINP(B)::R1(L),XQ(e)
- Refutation
- R(c);
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- R(c);::QAB1(G)
- Q(e);N_PINP(B)::QAB1(G)
- Refutation
- P(k);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(6)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- R(c);::QAB1(G)
- Refutation
- P(k);XQ(G)
- Try
- Q(G);
- Threat
- QAR1(G)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- Q(e);N_GUARD,N_PINP(B)::S(A),XQ(e)
- B(i);::S(F)
- Refutation
- R(c);
- Try
- Actual
- S(A);
- Threat
- B(H)
- Vars
- Q(e);CHECK,XP(B)::S(F),XQ(e)
- B(i);CHECK,N_GUARD,N_PINP(B)::QAR(G),XB(i)
- Q(e);N_PINP(B),OGATE,XS(A)::R1(L),XQ(e)
- B(i);::QAB(G)+P(E)
- B(i);::S(F)
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).