MESON Chess Problem Database
Problem Display
PID: 30295 (1r6/R1p1p3/np1kPp2/1PN2Qn1/1p1P4/pP1R4/K2P4/8 w - - 0 1)
Stocchi, Ottavio
3rd Prize, Polish Problem Assoc. TT, 1948-1949
#2
10 + 10
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sxe6
- 2.Qxe6#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...Sxc5
- 2.dxc5#
- 1...bxc5
- 2.dxc5#
- 1...c6
- 2.Rd7#
- 1...Rb7
- Tries
- 1.Ka1?
- 1...Sxe6
- 2.Qxe6#
- 1...Sxc5
- 2.dxc5#
- 1...bxc5
- 2.dxc5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...c6
- 2.Rd7#
- 1...a2!
- 1...Sxe6
- 1.Kb1?
- 1...Sxe6
- 2.Qxe6#
- 1...Sxc5
- 2.dxc5#
- 1...bxc5
- 2.dxc5#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...c6
- 2.Rd7#
- 1...a2+!
- 1...Sxe6
- 1.Rxa6?
- 1...Sxe6
- 2.Qxe6#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...c6!
- 1...Sxe6
- 1.Ra8?
- 1...Rxa8
- 2.Sb7#
- 1...Sxe6
- 2.Qxe6#
- 1...Sxc5
- 2.dxc5#
- 1...bxc5
- 2.dxc5#
- 1...Rb7
- 2.Sxb7#
- 2.Rd8#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 2.Rxd8#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...c6!
- 1...Rxa8
- 1.Qe4?
- threat
- 2.Qc6#
- 1...c6
- 2.Rd7#
- 2.Qxc6#
- 1...Sxe4!
- threat
- 1.Ka1?
- Keys
- 1.d5!
- 1...Kxc5
- 2.d6#
- 1...Sxe6
- 2.dxe6#
- 1...Sxc5
- 2.Qf4#
- 1...bxc5
- 2.Qf4#
- 1...Rb7
- 2.Sxb7#
- 1...Ra8
- 2.Sb7#
- 1...Rc8
- 2.Sb7#
- 1...Rd8
- 2.Sb7#
- 1...Re8
- 2.Sb7#
- 1...Rf8
- 2.Sb7#
- 1...Rg8
- 2.Sb7#
- 1...Rh8
- 2.Sb7#
- 1...Sf3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sf7
- 2.Se4#
- 1...Sh7
- 2.Se4#
- 1...c6
- 2.dxc6#
- 1...Kxc5
- 1.d5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- S(c);OGATE,XP(I)::QAR1(H),XS(c)
- S(d);OGATE,XS(G)::R(D)+P(E)DCHECK,XS(d)
- P(e);OGATE,XS(G)::R(D)+P(E)DCHECK,XP(e)
- P(h);OGATE::R1(J)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- S(c);OGATE,XP(I)::QAR1(H),XS(c)
- S(d);OGATE,XS(G)::R(D)+P(E)DCHECK,XS(d)
- P(e);OGATE,XS(G)::R(D)+P(E)DCHECK,XP(e)
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- P(h);OGATE::R1(J)
- Refutation
- P(a);
- Try
- K(A);S_FLIGHT
- Vars
- S(c);OGATE,XP(I)::QAR1(H),XS(c)
- S(d);OGATE,XS(G)::R(D)+P(E)DCHECK,XS(d)
- P(e);OGATE,XS(G)::R(D)+P(E)DCHECK,XP(e)
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- P(h);OGATE::R1(J)
- Refutation
- P(a);CHECK
- Try
- R(J);P_PINP(e),XS(d)
- Vars
- S(c);OGATE,XP(I)::QAR1(H),XS(c)
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- Refutation
- P(h);N_SPINP(e)
- Try
- R(J);
- Vars
- R(j);N_GUARD,XR(J)::S(G)
- S(c);OGATE,XP(I)::QAR1(H),XS(c)
- S(d);OGATE,XS(G)::R(D)+P(E)DCHECK,XS(d)
- P(e);OGATE,XS(G)::R(D)+P(E)DCHECK,XP(e)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- Refutation
- P(h);
- Try
- Q(H);
- Threat
- QAR1(H)
- Refutation
- S(c);XQ(H)
- Try
- Actual
- P(E);
- Vars
- K(f);OGATE,S_FLIGHT,XS(G)::QAR(H)+P(E)
- S(c);OGATE,XP(I)::R(D)+P(E),XS(c)
- S(d);SBLOCK,XS(G)::QAB(H)
- P(e);SBLOCK,XS(G)::QAB(H)
- R(j);N_GUARD::S(G),XR(j)
- R(j);N_GUARD::S(G)
- S(c);N_GUARD::S(G)
- S(c);N_GUARD::S(G),XS(c)
- P(h);OGATE::R(D)+P(E),XP(h)
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