MESON Chess Problem Database
Problem Display
PID: 64355 (4Q2K/2b3B1/1n6/1PrN4/1pkp4/1NP4p/1R4br/1BR5 w - - 0 1)
Stocchi, Ottavio
2nd Prize, Arbejder-Skak, 1952/II
#2
10 + 9
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.cxd4#
- 1...Rc6
- 2.Qxc6#
- 1...Bxd5
- 2.Sa5#
- 1...Bg3
- 2.Sxb6#
- 1...Bf4
- 2.Sxb6#
- 1...Be5
- 2.Sxb6#
- 1...Bd6
- 2.Sxb6#
- 1...Bb8
- 2.Sxb6#
- 1...Sxd5
- 2.Sd2#
- 1...dxc3
- 2.Se3#
- 1...d3
- 2.Se3#
- 1...Rxd5
- Tries
- 1.Sxb4?
- threat
- 2.Sd2#
- 2.Sa5#
- 2.Bd3#
- 1...Rxb5
- 2.Bd3#
- 1...dxc3
- 2.Sd2#
- 2.Sa5#
- 1...Rc6
- 2.Bd3#
- 1...Bc6
- 2.Bd3#
- 1...Sd7
- 2.Bd3#
- 1...Rd5
- 2.Bd3#
- 1...Re5
- 2.Bd3#
- 1...Rf5
- 2.Bd3#
- 1...Rg5
- 2.Bd3#
- 1...Bf1
- 2.Sa5#
- 1...Bh1
- 2.Sa5#
- 2.Bd3#
- 1...Bf3
- 2.Sa5#
- 2.Bd3#
- 1...Be4
- 2.Sa5#
- 1...Bd5
- 2.Sa5#
- 2.Bd3#
- 1...Bb7
- 2.Sa5#
- 2.Bd3#
- 1...Ba8
- 2.Sa5#
- 2.Bd3#
- 1...Bf4
- 2.Sa5#
- 2.Bd3#
- 1...Sa4
- 2.Sd2#
- 2.Bd3#
- 1...Sd5
- 2.Sd2#
- 2.Bd3#
- 1...Sa8
- 2.Sd2#
- 2.Bd3#
- 1...Sc8
- 2.Sd2#
- 2.Bd3#
- 1...d3
- 2.Sd2#
- 2.Sa5#
- 2.Bxd3#
- 1...Rh5+!
- threat
- 1.Bd3+?
- 1...Kxd3
- 2.Qe2#
- 1...Kxd5!
- 1...Kxd3
- 1.Qc6?
- threat
- 2.Sd2#
- 2.Sa5#
- 2.Qxc5#
- 2.cxb4#
- 2.cxd4#
- 1...Bxd5
- 2.Sa5#
- 2.Qxc5#
- 1...Sxd5
- 2.Sd2#
- 2.Qxc5#
- 1...bxc3
- 2.Sd2#
- 2.Sa5#
- 2.Qxc5#
- 1...dxc3
- 2.Sd2#
- 2.Sa5#
- 2.Se3#
- 2.Qxc5#
- 1...Rh1
- 2.Sd2#
- 2.Sa5#
- 2.Qxc5#
- 1...Bf1
- 2.Sa5#
- 2.Qxc5#
- 1...Bh1
- 2.Sa5#
- 2.Qxc5#
- 1...Bf3
- 2.Sa5#
- 2.Qxc5#
- 1...Be4
- 2.Sa5#
- 2.Qxc5#
- 1...Bf4
- 2.Sa5#
- 2.Sxb6#
- 2.Qxc5#
- 1...Bd6
- 2.Sd2#
- 2.Sa5#
- 2.Sxb6#
- 2.cxb4#
- 2.cxd4#
- 1...Sa4
- 2.Sd2#
- 1...Sd7
- 2.Sd2#
- 2.cxb4#
- 2.cxd4#
- 1...Sa8
- 2.Sd2#
- 2.Qxc5#
- 2.cxb4#
- 2.cxd4#
- 1...Sc8
- 2.Sd2#
- 2.Qxc5#
- 2.cxb4#
- 2.cxd4#
- 1...d3
- 2.Sd2#
- 2.Sa5#
- 2.Se3#
- 2.Qxc5#
- 2.cxb4#
- 1...Rxc6!
- threat
- 1.Qd7?
- threat
- 2.Sd2#
- 2.Sa5#
- 2.cxb4#
- 2.cxd4#
- 1...Rxb5
- 2.cxb4#
- 2.cxd4#
- 1...Rxd5
- 2.cxd4#
- 1...Bxd5
- 2.Sa5#
- 1...Sxd5
- 2.Sd2#
- 1...bxc3
- 2.Sd2#
- 2.Sa5#
- 1...dxc3
- 2.Sd2#
- 2.Sa5#
- 2.Se3#
- 1...Rc6
- 2.Qxc6#
- 1...Bd6
- 2.Sxb6#
- 1...Rh1
- 2.Sd2#
- 2.Sa5#
- 1...Bf1
- 2.Sa5#
- 1...Bh1
- 2.Sa5#
- 1...Bf3
- 2.Sa5#
- 1...Be4
- 2.Sa5#
- 1...Bf4
- 2.Sa5#
- 2.Sxb6#
- 1...Sa4
- 2.Sd2#
- 1...Sa8
- 2.Sd2#
- 2.cxb4#
- 2.cxd4#
- 1...Sc8
- 2.Sd2#
- 2.cxb4#
- 2.cxd4#
- 1...d3
- 2.Sd2#
- 2.Sa5#
- 2.Se3#
- 2.cxb4#
- 1...Sxd7!
- threat
- 1.Qe2+?
- 1...d3
- 2.Qxd3#
- 1...Kxd5!
- 1...d3
- 1.Sxb4?
- Keys
- 1.Sxd4!
- threat
- 2.Se3#
- 1...Kxd5
- 2.Qe6#
- 1...Rxb5
- 2.Qxb5#
- 1...Rxd5
- 2.cxb4#
- 1...Bxd5
- 2.Rxb4#
- 1...Sxd5
- 2.Qe2#
- 1...Rc6
- 2.Qxc6#
- 1...Bf4
- 2.Sxb6#
- threat
- 1.Sxd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(g);SBLOCK,XS(G)::R(B)+P(E),XP(f)
- R(g);OGATEB::QAR2(I),XR(g)
- B(a);SBLOCK,XS(G)::S(D)
- B(i);N_GUARD::S(G),XS(h)
- B(i);N_GUARD,P_PINB(H)::S(G),XS(h)
- S(h);SBLOCK,XS(G)::S(D)
- P(f);N_GUARD,P_SPINP(f),XP(E)::S(G)
- P(f);N_GUARD::S(G)
- Tries
- Try
- S(G);XP(d)
- Threat
- DUALS(3)
- Vars
- R(g);XP(F)::B(A)
- R(g);::B(A)
- B(a);::B(A)
- S(h);::B(A)
- B(a);::S(D)
- Refutation
- R(g);CHECK
- Try
- B(A);CHECK
- Vars
- K(e);S_FLIGHT,XB(A)::QAB1(I)
- Refutation
- K(e);S_FLIGHT,XS(G)
- Try
- Q(I);P_PINR(g)
- Threat
- DUALS(5)
- Vars
- S(h);::S(D)
- Refutation
- R(g);N_SPINR(g),XQ(I)
- Try
- Q(I);
- Threat
- DUALS(4)
- Vars
- R(g);XS(G)::R(B)+P(E),XP(f)
- B(a);XS(G)::S(D)
- S(h);XS(G)::S(D)
- R(g);OGATEB::QAR2(I),XR(g)
- B(i);N_GUARD::S(G),XS(h)
- B(a);::S(D)
- S(h);::S(D)
- Refutation
- S(h);XQ(I)
- Try
- Q(I);CHECK
- Vars
- P(f);P_SPINP(f)::QAB1(I),XP(f)
- Refutation
- K(e);S_FLIGHT,XS(G)
- Try
- Actual
- S(D);XP(f)
- Threat
- S(G)
- Vars
- K(e);OGATEB,S_FLIGHT,XS(G)::QAB1(I)
- R(g);OGATE,XP(F)::QAB1(I),XR(g)
- R(g);SBLOCK,XS(G)::R(B)+P(E),XP(d)
- B(a);SBLOCK,XS(G)::R1(C),XP(d)
- S(h);SBLOCK,XS(G)::QAB(I)
- R(g);OGATEB::QAR2(I),XR(g)
- B(i);N_GUARD::S(G),XS(h)
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).