MESON Chess Problem Database
Problem Display
PID: 30514 (b3B2B/7Q/3PP3/1Np1Np2/Rp1pk3/1P4K1/5P1p/3R4 w - - 0 1)
Stocchi, Ottavio
3rd Comm., El Ajedrez Espanol, 1949
#2
12 + 7
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.Re1#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Qxb7#
- 1...h1Q
- 2.Qxh1#
- 1...h1S+
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...c4
- 2.Rxd4#
- 1...Bd5
- Tries
- 1.Sc7?
- threat
- 2.Re1#
- 1...h1S+
- 2.Qxh1#
- 1...h1Q
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...d3!
- threat
- 1.Sd3?
- 1...h1S+
- 2.Qxh1#
- 1...Kd5
- 2.Qxf5#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bd5
- 2.Sxc5#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Qxb7#
- 1...c4!
- 1...h1S+
- 1.Sc4?
- 1...h1S+
- 2.Qxh1#
- 1...Kd5
- 2.Qxf5#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bd5
- 2.f3#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Qxb7#
- 1...d3!
- 1...h1S+
- 1.Sc6?
- 1...h1S+
- 2.Qxh1#
- 1...Kd5
- 2.Qxf5#
- 1...Bxc6
- 2.Bxc6#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...d3
- 2.Sc3#
- 1...c4
- 2.Rxd4#
- 1...Bb7!
- 1...h1S+
- 1.Sf7?
- 1...h1S+
- 2.Qxh1#
- 1...Kd5
- 2.Qxf5#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bd5
- 2.Sg5#
- 1...Bc6
- 2.Bxc6#
- 1...d3
- 2.Sc3#
- 1...c4
- 2.Rxd4#
- 1...Bb7!
- 1...h1S+
- 1.Rd3?
- 1...h1S+
- 2.Qxh1#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bd5
- 2.f3#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Qxb7#
- 1...c4
- 2.Rxd4#
- 1...Kd5!
- 1...h1S+
- 1.Rxb4?
- threat
- 2.Sc3#
- 1...h1S+
- 2.Qxh1#
- 1...cxb4
- 2.Rxd4#
- 1...c4
- 2.Rxd4#
- 1...Kd5!
- threat
- 1.Rxa8?
- threat
- 2.Bc6#
- 2.Qb7#
- 1...h1S+
- 2.Qxh1#
- 1...Kd5!
- threat
- 1.Qxf5+?
- 1...Kd5
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sf7#
- 1...Kxf5!
- 1...Kd5
- 1.Sc7?
- Keys
- 1.Sg4!
- 1...h1S+
- 2.Qxh1#
- 1...Kd5
- 2.Qxf5#
- 1...h1Q
- 2.Qxh1#
- 1...h1B
- 2.Qxh1#
- 1...h1R
- 2.Qxh1#
- 1...Bd5
- 2.f3#
- 1...Bc6
- 2.Bxc6#
- 1...Bb7
- 2.Qxb7#
- 1...d3
- 2.Sc3#
- 1...c4
- 2.Rxd4#
- 1...h1S+
- 1.Sg4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(g);SBLOCK::R(A)
- B(g);N_GUARD::B(K),XB(g)
- B(g);N_GUARD::QAB(J),XB(g)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);CHECK,OGATE::QAB(J),XS(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- P(e);N_GUARD::R1(A),XP(c)
- Tries
- Try
- S(F);
- Threat
- R(A)
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XR(a)
- Refutation
- P(c);N_SPINP(f),P_SPINP(b)
- Try
- S(G);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- K(d);N_SPINP(f),S_FLIGHT::QAR2(J),XP(f)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- B(g);SBLOCK::S(G),XP(e)
- B(g);N_GUARD::B(K),XB(g)
- B(g);N_GUARD::QAB(J),XB(g)
- Refutation
- P(e);
- Try
- S(G);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT::QAR2(J),XP(f)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- B(g);SBLOCK::P(B)
- B(g);N_GUARD::B(K),XB(g)
- B(g);N_GUARD::QAB(J),XB(g)
- Refutation
- P(c);
- Try
- S(G);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT::QAR2(J),XP(f)
- B(g);OGATE,XS(G)::B(K),XB(g)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- P(c);N_GUARD,N_SPINP(f),P_SPINP(b)::S(F)
- P(e);N_GUARD::R1(A),XP(c)
- Refutation
- B(g);
- Try
- S(G);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT::QAR2(J),XP(f)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- B(g);SBLOCK::S(G)
- B(g);N_GUARD::B(K),XB(g)
- P(c);N_GUARD,N_SPINP(f),P_SPINP(b)::S(F)
- P(e);N_GUARD::R1(A),XP(c)
- Refutation
- B(g);
- Try
- R(A);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- B(g);SBLOCK::P(B)
- B(g);N_GUARD::B(K),XB(g)
- B(g);N_GUARD::QAB(J),XB(g)
- P(e);N_GUARD::R1(A),XP(c)
- Refutation
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT
- Try
- R(E);N_PINP(f),P_PINP(c),XP(b)
- Threat
- S(F)
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- P(e);N_GUARD,N_SPINP(c),P_SPINP(f),XR(E)::R1(A),XP(c)
- P(e);N_GUARD,N_SPINP(c),P_SPINP(f)::R1(A),XP(c)
- Refutation
- K(d);S_FLIGHT
- Try
- R(E);XB(g)
- Threat
- DUALS(2)
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- Refutation
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT
- Try
- Q(J);CHECK,XP(f)
- Refutation
- K(d);S_FLIGHT,XQ(J)
- Try
- Actual
- S(G);
- Vars
- P(a);CHECK,OGATE::QAB(J),XS(a)
- K(d);N_SPINP(f),P_SPINP(c),S_FLIGHT::QAR2(J),XP(f)
- P(a);OGATE::QAB(J),XQ(a)
- P(a);OGATE::QAB(J),XB(a)
- P(a);OGATE::QAB(J),XR(a)
- B(g);SBLOCK::P(B)
- B(g);N_GUARD::B(K),XB(g)
- B(g);N_GUARD::QAB(J),XB(g)
- P(c);N_GUARD,N_SPINP(f),P_SPINP(b)::S(F)
- P(e);N_GUARD::R1(A),XP(c)
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).