MESON Chess Problem Database
Problem Display
PID: 29651 (Br1rb1N1/2B2Q2/2qn2p1/2n5/pR1Pk1P1/2P1NpbR/2KP1p2/8 w - - 0 1)
Stocchi, Ottavio
5th HM., The Home News, 1947
#2
12 + 12
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qd5
- 2.Bxd5#
- 1...Rd7
- 2.Bxc6#
- 1...Bh2
- 2.Qxf3#
- 1...Bf4
- 2.Sf6#
- 1...Bh4
- 2.Qxf3#
- 1...Be5
- 2.Qxf3#
- 1...Sd7
- 2.Bxc6#
- 1...Sc4
- 2.Sf6#
- 1...Sb5
- 2.Sf6#
- 1...Sf5
- 2.Sf6#
- 1...Sb7
- 2.d5#
- 1...Sxf7
- 2.Sf6#
- 1...Sc8
- 2.Sf6#
- 1...Qd5
- Tries
- 1.Sg2?
- threat
- 2.Sf6#
- 1...Bh4
- 2.Qxf3#
- 1...Be5
- 2.Qxf3#
- 1...Sd7
- 2.Bxc6#
- 2.d3#
- 1...Sdb7
- 2.d5#
- 1...fxg2!
- threat
- 1.Bxd6?
- threat
- 2.Sf6#
- 1...Bxd6
- 2.Qxf3#
- 1...Bh4
- 2.Qxf3#
- 2.Qf4#
- 1...Be5
- 2.Qxf3#
- 1...Sd7
- 2.Bxc6#
- 1...Rxd6!
- threat
- 1.Qd5+?
- 1...Kf4
- 2.Qe5#
- 1...Qxd5!
- 1...Kf4
- 1.Qe6+?
- 1...Kf4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Sxe6!
- 1...Kf4
- 1.Qxg6+?
- 1...Kf4
- 2.Qf5#
- 1...Sf5
- 2.Sf6#
- 2.Qxf5#
- 1...Bxg6!
- 1...Kf4
- 1.Qf4+?
- 1...Bxf4
- 2.Sf6#
- 1...Kxf4!
- 1...Bxf4
- 1.Qf5+?
- 1...Sxf5
- 2.Sf6#
- 1...gxf5!
- 1...Sxf5
- 1.Qe7+?
- 1...Kf4
- 2.Qe5#
- 1...Be5
- 2.Qxe5#
- 1...Se6!
- 1...Kf4
- 1.dxc5+?
- 1...Ke5
- 2.Qf6#
- 2.Qe7#
- 1...Sc4
- 2.Sf6#
- 1...Rxb4!
- 1...Ke5
- 1.d5+?
- 1...Ke5
- 2.Qf6#
- 2.Qg7#
- 1...Sc4
- 2.Rxc4#
- 1...Rxb4!
- 1...Ke5
- 1.Sg2?
- Keys
- 1.Sd5!
- threat
- 2.Sgf6#
- 1...Qxd5
- 2.Bxd5#
- 1...Sxf7
- 2.Sdf6#
- 1...Bh4
- 2.Qxf3#
- 1...Be5
- 2.Qxf3#
- 1...Sd7
- 2.d3#
- 1...Sc4
- 2.Sdf6#
- 1...Sb5
- 2.Sdf6#
- 1...Sf5
- 2.Sdf6#
- 1...Sdb7
- 2.dxc5#
- 1...Sc8
- 2.Sdf6#
- threat
- 1.Sd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 3
- Sets
- Q(g);OGATE::B(K),XQ(g)
- R(k);S_CUTB(l)::B(K),XQ(g)
- B(c);::QAB1(J),XP(b)
- B(c);SBLOCK::S(L)
- S(f);P_PINP(C),S_CUTB(l)::B(K),XQ(g)
- S(h);::S(L)
- S(h);N_GUARD,N_SPINQ(g),S_CUTR(j)::R(F)+P(G)
- S(h);XQ(J)::S(L)
- Tries
- Try
- S(D);
- Threat
- S(L)
- Vars
- B(c);::QAB1(J),XP(b)
- S(h);N_GUARD,N_SPINQ(g),S_CUTR(j)::R(F)+P(G)
- Refutation
- P(b);XS(D)
- Try
- B(I);XS(h)
- Threat
- S(L)
- Vars
- B(c);XB(I)::QAB1(J),XP(b)
- B(c);::QAB1(J),XP(b)
- S(f);P_PINP(C),S_CUTB(l)::B(K),XQ(g)
- Refutation
- R(k);XB(I)
- Try
- Q(J);CHECK,N_PINQ(g)
- Vars
- K(e);P-FLIGHT,P_SPINS(h)::QAB1(J)
- Refutation
- Q(g);P_SPINQ(g),XQ(J)
- Try
- Q(J);CHECK
- Vars
- K(e);N_SPINQ(g),P-FLIGHT,P_SPINS(h)::QAB1(J)
- B(c);N_GUARD,P_SPINB(c)::QAR1(J),XB(c)
- Refutation
- S(f);P_PINP(C),XQ(J)
- Try
- Q(J);CHECK,XP(i)
- Vars
- K(e);N_SPINQ(g),P-FLIGHT,P_SPINS(h)::QAR1(J)
- Refutation
- B(l);XQ(J)
- Try
- Q(J);CHECK
- Vars
- B(c);SBLOCK,XQ(J)::S(L)
- Refutation
- K(e);N_SPINQ(g),P-FLIGHT,P_SPINS(h),XQ(J)
- Try
- Q(J);CHECK
- Vars
- S(h);XQ(J)::S(L)
- Refutation
- P(i);XQ(J)
- Try
- Q(J);CHECK
- Vars
- K(e);N_SPINQ(g),P-FLIGHT,P_SPINS(h)::QAB1(J)
- B(c);N_GUARD,P_SPINB(c)::QAR1(J),XB(c)
- Refutation
- S(f);P_PINP(C),P_SPINS(f)
- Try
- P(G);CHECK,XS(f)
- Vars
- S(h);P_SPINS(h)::S(L)
- Refutation
- R(j);XR(F)
- Try
- P(G);CHECK,N_PINQ(g)
- Vars
- S(h);N_GUARD,P_SPINS(h)::R(F),XS(h)
- Refutation
- R(j);XR(F)
- Try
- Actual
- S(D);N_PINQ(g)
- Threat
- S(L)
- Vars
- Q(g);OGATE,P_SPINQ(g),XS(D)::B(K),XQ(g)
- S(h);XQ(J)::S(D)
- B(c);::QAB1(J),XP(b)
- S(f);N_GUARD,P_PINP(C)::P(B)
- S(h);::S(D)
- S(h);N_GUARD,S_CUTR(j)::R(F)+P(G),XS(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).