MESON Chess Problem Database
Problem Display
PID: 34185 (2K1B2B/2P1N2p/p1RPk2n/8/r1P3P1/4qnN1/4Q3/5Rbb w - - 0 1)
Stocchi, Ottavio
2nd Prize, Magasinet, 1950/I
#2
12 + 9
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Qxc4#
- 1...Se1
- 2.Bd7#
- 1...Sd2
- 2.Bd7#
- 1...Sh2
- 2.Bd7#
- 1...Sd4
- 2.Bd7#
- 1...Sh4
- 2.Bd7#
- 1...Se5
- 2.Rf6#
- 1...Sg5
- 2.Bd7#
- 1...Sf5
- 2.gxf5#
- 1...Sf7
- 2.Bd7#
- 1...Rxc4
- Tries
- 1.Kb7?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Qxe2
- 2.c8Q#
- 2.c8B#
- 1...Rxc4
- 2.Qxc4#
- 2.c8Q#
- 2.c8B#
- 1...Sxg4
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qe5
- 2.c8Q#
- 2.c8B#
- 1...Ra1
- 2.c8Q#
- 2.c8B#
- 1...Ra2
- 2.c8Q#
- 2.c8B#
- 1...Ra3
- 2.c8Q#
- 2.c8B#
- 1...Ra5
- 2.c8Q#
- 2.c8B#
- 1...Bf2
- 2.c8Q#
- 2.c8B#
- 1...Bh2
- 2.c8Q#
- 2.c8B#
- 1...Bg2
- 2.c8Q#
- 2.c8B#
- 1...Se1
- 2.c8Q#
- 2.c8B#
- 1...Sd2
- 2.c8Q#
- 2.c8B#
- 1...Sh2
- 2.c8Q#
- 2.c8B#
- 1...Sd4
- 2.c8Q#
- 2.c8B#
- 1...Sh4
- 2.c8Q#
- 2.c8B#
- 1...Se5
- 2.Rf6#
- 1...Sg5
- 2.c8Q#
- 2.c8B#
- 1...Sf5
- 2.gxf5#
- 2.c8Q#
- 2.c8B#
- 1...Sf7
- 2.c8Q#
- 2.c8B#
- 1...Sg8
- 2.c8Q#
- 2.c8B#
- 1...a5
- 2.c8Q#
- 2.c8B#
- 1...Rb4+!
- threat
- 1.Kb8?
- threat
- 2.c8Q#
- 2.c8B#
- 1...Qxe2
- 2.c8Q#
- 2.c8B#
- 1...Rxc4
- 2.Qxc4#
- 2.c8Q#
- 2.c8B#
- 1...Sxg4
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.c8Q#
- 2.c8B#
- 1...Qe5
- 2.c8Q#
- 2.c8B#
- 1...Ra1
- 2.c8Q#
- 2.c8B#
- 1...Ra2
- 2.c8Q#
- 2.c8B#
- 1...Ra3
- 2.c8Q#
- 2.c8B#
- 1...Ra5
- 2.c8Q#
- 2.c8B#
- 1...Bf2
- 2.c8Q#
- 2.c8B#
- 1...Bh2
- 2.c8Q#
- 2.c8B#
- 1...Bg2
- 2.c8Q#
- 2.c8B#
- 1...Se1
- 2.c8Q#
- 2.c8B#
- 1...Sd2
- 2.c8Q#
- 2.c8B#
- 1...Sh2
- 2.c8Q#
- 2.c8B#
- 1...Sd4
- 2.c8Q#
- 2.c8B#
- 1...Sh4
- 2.c8Q#
- 2.c8B#
- 1...Se5
- 2.Rf6#
- 1...Sg5
- 2.c8Q#
- 2.c8B#
- 1...Sf5
- 2.gxf5#
- 2.c8Q#
- 2.c8B#
- 1...Sf7
- 2.c8Q#
- 2.c8B#
- 1...Sg8
- 2.c8Q#
- 2.c8B#
- 1...a5
- 2.c8Q#
- 2.c8B#
- 1...Rb4+!
- threat
- 1.Kd8?
- threat
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Qxe2
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Rxc4
- 2.Qxc4#
- 2.c8Q#
- 2.c8B#
- 1...Sxg4
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Qe4
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Qe5
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Ra1
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Ra2
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Ra3
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Rb4
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Ra5
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Bf2
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Bh2
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Bg2
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Se1
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sd2
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sh2
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sd4
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sh4
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Se5
- 2.Rf6#
- 1...Sg5
- 2.Bd7#
- 2.c8Q#
- 2.c8B#
- 1...Sf5
- 2.gxf5#
- 2.c8Q#
- 2.c8B#
- 1...Sg8
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...a5
- 2.d7#
- 2.c8Q#
- 2.c8B#
- 1...Sf7+!
- threat
- 1.Sgf5?
- threat
- 2.d7#
- 1...Rxc4
- 2.Qxc4#
- 1...Sxf5
- 2.gxf5#
- 1...Se1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Se5
- 2.Sg7#
- 1...Sg5
- 2.Sd4#
- 1...Sf7
- 2.Bd7#
- 1...Bh2!
- threat
- 1.Sh5?
- threat
- 2.Sf4#
- 1...Rxc4
- 2.Qxc4#
- 1...Se5
- 2.Sg7#
- 2.Rf6#
- 1...Bh2!
- threat
- 1.Sd5?
- threat
- 2.Sf4#
- 2.d7#
- 1...Sd4
- 2.Sf4#
- 2.Bd7#
- 1...Se5
- 2.Rf6#
- 1...Sf5
- 2.Sf4#
- 2.gxf5#
- 1...Sf7
- 2.Sf4#
- 2.Bd7#
- 1...Rxc4!
- threat
- 1.Sg6?
- threat
- 2.Sf4#
- 2.Sf8#
- 2.d7#
- 1...Rxc4
- 2.Qxc4#
- 1...Se1
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Sd2
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Sh2
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Sd4
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Sh4
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Se5
- 2.Sf8#
- 2.Rf6#
- 1...Sg5
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 2.Rf6#
- 1...Sf5
- 2.Sf4#
- 2.Sf8#
- 2.gxf5#
- 1...Sf7
- 2.Sf4#
- 2.Sf8#
- 2.Bd7#
- 1...hxg6!
- threat
- 1.Sg8?
- threat
- 2.d7#
- 1...Rxc4
- 2.Qxc4#
- 1...Se1
- 2.Bd7#
- 1...Sd2
- 2.Bd7#
- 1...Sh2
- 2.Bd7#
- 1...Sd4
- 2.Bd7#
- 1...Sh4
- 2.Bd7#
- 1...Se5
- 2.Rf6#
- 1...Sg5
- 2.Bd7#
- 1...Sf5
- 2.gxf5#
- 1...Sf7
- 2.Bd7#
- 1...Sxg8!
- threat
- 1.Rxf3?
- threat
- 2.Bd7#
- 1...Sf5
- 2.gxf5#
- 1...Bxf3!
- threat
- 1.Qxe3+?
- 1...Se5
- 2.Bd7#
- 2.Rf6#
- 2.Qxe5#
- 1...Bxe3!
- 1...Se5
- 1.Kb7?
- Keys
- 1.Sef5!
- threat
- 2.d7#
- 1...Rxc4
- 2.Qxc4#
- 1...Sxf5
- 2.gxf5#
- 1...Se1
- 2.Sd4#
- 1...Sd2
- 2.Sd4#
- 1...Sh2
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sh4
- 2.Sd4#
- 1...Se5
- 2.Sg7#
- 1...Sg5
- 2.Sd4#
- 1...Sf7
- 2.Bd7#
- threat
- 1.Sef5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- S(d);::B(K)
- S(d);N_SPINQ(c),OGATE,SBLOCK::R1(A)
- S(h);OGATE::P(E),XS(h)
- S(h);SBLOCK::B(K)
- Tries
- Try
- K(J);S_FLIGHT
- Threat
- P=Q
- Vars
- Q(c);N_SPINQ(c),XQ(B)::P=Q
- S(h);XP(E)::P=Q
- Q(c);P_PINR(F)::P=Q
- Q(c);::P=Q
- R(e);::P=Q
- B(a);::P=Q
- B(b);::P=Q
- S(d);P_PINR(F)::P=Q
- S(d);N_SPINQ(c),OGATE,P_PINR(F),SBLOCK::R1(A)
- S(h);::P=Q
- P(f);::P=Q
- Refutation
- R(e);CHECK
- Try
- K(J);P-FLIGHT
- Threat
- P=Q
- Vars
- Q(c);N_SPINQ(c),XQ(B)::P=Q
- S(h);XP(E)::P=Q
- Q(c);::P=Q
- R(e);::P=Q
- B(a);::P=Q
- B(b);::P=Q
- S(d);::P=Q
- S(d);N_SPINQ(c),OGATE,SBLOCK::R1(A)
- S(h);::P=Q
- P(f);::P=Q
- Refutation
- R(e);CHECK
- Try
- K(J);P-FLIGHT
- Threat
- DUALS(3)
- Vars
- S(d);N_SPINQ(c),OGATE,SBLOCK::R1(A)
- Refutation
- S(h);CHECK
- Try
- S(C);
- Threat
- R(F)+P(G)
- Vars
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- S(h);OGATE,XS(C)::P(E),XS(h)
- S(d);N_GUARD::S(C)
- S(d);N_GUARD::S(C),XS(d)
- S(d);N_SPINQ(c),SBLOCK::S(C)
- S(h);SBLOCK::B(K)
- Refutation
- B(a);
- Try
- S(C);
- Threat
- S(C)
- Vars
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- Refutation
- B(a);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- S(d);N_SPINQ(c),OGATE,SBLOCK::R1(A)
- Refutation
- R(e);XP(D)
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- Refutation
- P(i);XS(I)
- Try
- S(I);
- Threat
- R(F)+P(G)
- Vars
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- S(d);::B(K)
- S(d);N_SPINQ(c),OGATE,SBLOCK::R1(A)
- S(h);OGATE::P(E),XS(h)
- S(h);SBLOCK::B(K)
- Refutation
- S(h);XS(I)
- Try
- R(A);XS(d)
- Threat
- B(K)
- Vars
- S(h);OGATE::P(E),XS(h)
- Refutation
- B(b);XR(A)
- Try
- Q(B);CHECK,XQ(c)
- Refutation
- B(a);XQ(B)
- Try
- Actual
- S(I);
- Threat
- R(F)+P(G)
- Vars
- R(e);OGATE,XP(D)::QAB(B),XR(e)
- S(h);OGATE,XS(I)::P(E),XS(h)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(d);N_SPINQ(c),SBLOCK::S(I)
- S(h);SBLOCK::B(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).