MESON Chess Problem Database
Problem Display
PID: 63907 (3R1r1b/4Q3/5p2/1ppB1p2/2Nkb3/2Rp1pBn/KP1pp3/8 w - - 0 1)
Stocchi, Ottavio
La Scacchiera, 1951
#2
8 + 13
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rf7
- 2.Bxe4#
- 1...Bxd5
- 2.Qe3#
- 1...Sg1
- 2.Bf2#
- 1...Sf2
- 2.Bxf2#
- 1...Sf4
- 2.Bf2#
- 1...Sg5
- 2.Bf2#
- 1...f4
- 2.Qxe4#
- 1...Rf7
- Tries
- 1.Sxd2?
- threat
- 2.Qxc5#
- 1...Bxd5+
- 2.Sb3#
- 1...Sf4
- 2.Bf2#
- 1...c4
- 2.Qa7#
- 1...f4
- 2.Qxe4#
- 1...Ke3!
- threat
- 1.Sa3?
- threat
- 2.Qxc5#
- 1...Ke3
- 2.Sc2#
- 2.Qxc5#
- 1...Sf4
- 2.Bf2#
- 1...c4
- 2.Qa7#
- 1...f4
- 2.Qxe4#
- 1...Bxd5+!
- threat
- 1.Se3?
- threat
- 2.Qxc5#
- 1...Bxd5+
- 2.Rxd5#
- 1...Kxe3
- 2.Qxc5#
- 1...c4
- 2.Qa7#
- 1...f4
- 2.Qxe4#
- 1...Sf4!
- threat
- 1.Sb6?
- threat
- 2.Qxc5#
- 1...Bxd5+
- 2.Rxd5#
- 1...Ke3
- 2.Qxc5#
- 1...Sf4
- 2.Bf2#
- 1...f4
- 2.Qxe4#
- 1...c4!
- threat
- 1.Bc6+?
- 1...Bd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rxd8!
- 1...Bd5
- 1.Bb7+?
- 1...Bd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rxd8!
- 1...Bd5
- 1.Bf7+?
- 1...Bd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rxd8!
- 1...Bd5
- 1.Ba8+?
- 1...Bd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rxd8!
- 1...Bd5
- 1.Bg8+?
- 1...Bd5
- 2.Rxd5#
- 2.Qe3#
- 1...Rxd8!
- 1...Bd5
- 1.Rxd3+?
- 1...Bxd3
- 2.Qe3#
- 1...Kxd3!
- 1...Bxd3
- 1.Rc8?
- threat
- 2.Qxc5#
- 1...Kxd5
- 2.Qd6#
- 2.Qd7#
- 1...Bxd5
- 2.Qe3#
- 1...Rxc8!
- threat
- 1.Qxf6+?
- 1...Rxf6
- 2.Be5#
- 1...Bxf6!
- 1...Rxf6
- 1.Sxd2?
- Keys
- 1.Sa5!
- threat
- 2.Qxc5#
- 1...Bxd5+
- 2.Sb3#
- 1...Ke3
- 2.Qxc5#
- 1...Sf4
- 2.Bf2#
- 1...c4
- 2.Qa7#
- 1...f4
- 2.Qxe4#
- threat
- 1.Sa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(l);N_GUARD::R(H)+B(F),XB(g)
- B(g);OGATE,P_PINS(E),P_SPINB(g),XB(F)::QAB1(G)
- S(e);N_GUARD::B(D)
- S(e);N_GUARD::B(D),XS(e)
- P(j);N_GUARD::QAR1(G),XB(g)
- Tries
- Try
- S(E);XP(a)
- Threat
- QAB1(G),XP(i)
- Vars
- B(g);CHECK,P_SPINB(g),XB(F)::S(E)
- S(e);N_GUARD::B(D)
- P(i);OGATEB::QAB(G)
- P(j);N_GUARD::QAR1(G),XB(g)
- Refutation
- K(f);P_SPINB(g),P_SPINP(c),S_FLIGHT
- Try
- S(E);
- Threat
- QAB1(G),XP(i)
- Vars
- S(e);N_GUARD::B(D)
- P(i);OGATEB::QAB(G)
- P(j);N_GUARD::QAR1(G),XB(g)
- Refutation
- B(g);CHECK,P_SPINB(g),XB(F)
- Try
- S(E);
- Threat
- QAB1(G),XP(i)
- Vars
- B(g);CHECK,OGATE,P_SPINB(g),XB(F)::R1(H),XB(g)
- K(f);P_SPINB(g),P_SPINP(c),S_FLIGHT,XS(E)::QAB(G),XP(i)
- P(i);OGATEB::QAB(G)
- P(j);N_GUARD::QAR1(G),XB(g)
- Refutation
- S(e);
- Try
- S(E);
- Threat
- QAB1(G),XP(i)
- Vars
- B(g);CHECK,OGATE,P_SPINB(g),XB(F)::R1(H),XB(g)
- K(f);P_SPINB(g),P_SPINP(c),S_FLIGHT::QAB(G),XP(i)
- S(e);N_GUARD::B(D)
- P(j);N_GUARD::QAR1(G),XB(g)
- Refutation
- P(i);
- Try
- B(F);CHECK
- Refutation
- R(l);XR(H)
- Try
- B(F);CHECK
- Refutation
- R(l);XR(H)
- Try
- B(F);CHECK
- Refutation
- R(l);XR(H)
- Try
- B(F);CHECK
- Refutation
- R(l);XR(H)
- Try
- B(F);CHECK
- Refutation
- R(l);XR(H)
- Try
- R(C);CHECK,XP(c)
- Vars
- B(g);OGATE,XR(C)::QAB1(G)
- Refutation
- K(f);P-FLIGHT,XR(C)
- Try
- R(H);
- Threat
- QAB1(G),XP(i)
- Vars
- B(g);OGATE,P_PINS(E),SBLOCK,XB(F)::QAB1(G)
- Refutation
- R(l);XR(H)
- Try
- Q(G);CHECK,XP(k)
- Vars
- R(l);XQ(G)::B(D)
- Refutation
- B(m);XQ(G)
- Try
- Actual
- S(E);
- Threat
- QAB1(G),XP(i)
- Vars
- B(g);CHECK,P_SPINB(g),XB(F)::S(E)
- K(f);P_SPINB(g),P_SPINP(c),S_FLIGHT::QAB(G),XP(i)
- S(e);N_GUARD::B(D)
- P(i);OGATEB::QAB(G)
- P(j);N_GUARD::QAR1(G),XB(g)
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).