MESON Chess Problem Database
Problem Display
PID: 142454 (2B1b1N1/3P1rp1/p3R1Qp/PnnkB3/1K2R3/2pp4/8/b7 w - - 0 1)
Fasano, Alessandro
4th HM., L'Italia Scacchistica, 2009
#2
9 + 11
| 56 | The Problemist | 2011 |
| 56 | The Problemist | 2014 |
| 23 | Die Schwalbe | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Rf1
- 2.Se7#
- 1...Rf2
- 2.Se7#
- 1...Rf3
- 2.Se7#
- 1...Rf4
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 1...Rf8
- 2.Se7#
- 1...Sa3
- 2.Rd4#
- 2.Rd6#
- 1...Sd4
- 2.Rxd4#
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sa7
- 2.Rd4#
- 2.Rd6#
- 1...Sc7
- 2.Rd4#
- 2.Rd6#
- 1...Sb3
- 2.Bb7#
- 1...Sa4
- 2.Bb7#
- 1...Sxe4
- 2.Bb7#
- 1...Sxe6
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Sxd7
- 2.Bb7#
- 1...Rf1
- Tries
- 1.Bh2?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Bb7#
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Bxc3?
- threat
- 2.R4e5#
- 2.R6e5#
- 1...Sxc3
- 2.R6e5#
- 2.Rd6#
- 1...Sxe4
- 2.Bb7#
- 2.Re5#
- 2.Qxe4#
- 1...Sxe6
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf4
- 2.Se7#
- 2.Re5#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 2.R4e5#
- 1...Re7
- 2.Sxe7#
- 2.R4e5#
- 2.Qf5#
- 1...Bxc3+!
- threat
- 1.Bg3?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Bb7#
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Bf4?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Bb7#
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Bc7?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Bb7#
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Bxg7?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Bb7#
- 2.Qxe4#
- 1...Sxe6
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Sxf6#
- 2.Se7#
- 1...Re7
- 2.Sf6#
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Bb8?
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Bb7#
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- 1...c2!
- threat
- 1.Rc4?
- threat
- 2.Rxc5#
- 1...Sxe6
- 2.Qe4#
- 1...Sxd7
- 2.Bb7#
- 1...Rf4
- 2.Se7#
- 1...Rf5
- 2.Se7#
- 1...Sb3
- 2.Bb7#
- 1...Sa4
- 2.Bb7#
- 1...Se4
- 2.Bb7#
- 1...Sb7
- 2.Bxb7#
- 1...Rf6!
- threat
- 1.Rb6?
- threat
- 2.Qc6#
- 1...Sxe4
- 2.Qe6#
- 1...Rf6
- 2.Se7#
- 1...Sd4
- 2.Rd6#
- 1...Sd6
- 2.Rxd6#
- 1...Sa7
- 2.Rd6#
- 1...Se6
- 2.Bb7#
- 1...Bxd7!
- threat
- 1.d8Q+?
- 1...Rd7
- 2.Se7#
- 1...Sd6
- 2.Rxd6#
- 2.Qxd6#
- 1...Sd7
- 2.Bb7#
- 1...Bd7!
- 1...Rd7
- 1.d8R+?
- 1...Rd7
- 2.Se7#
- 1...Sd6
- 2.Rexd6#
- 2.Rdxd6#
- 1...Sd7
- 2.Bb7#
- 1...Bd7!
- 1...Rd7
- 1.Bh2?
- Keys
- 1.Bd4!
- threat
- 2.R6e5#
- 1...Sxe4
- 2.Qxe4#
- 1...Sxe6
- 2.Qxe6#
- 1...Sxd7
- 2.Bb7#
- 1...Sd6
- 2.Rxd6#
- 1...Rf5
- 2.Se7#
- 2.Qxf5#
- 1...Rf6
- 2.Se7#
- 1...Re7
- 2.Sxe7#
- 2.Qf5#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 9
- Sets
- R(i);N_GUARD::S(I)
- R(i);N_GUARD,P_PINR(B)::S(I)
- R(i);N_GUARD::S(I),XR(i)
- S(d);N_GUARD::R1(E),XS(d)
- S(e);N_GUARD::B(H)
- S(e);N_GUARD,XR(B)::B(H)
- S(e);N_GUARD,XR(E)::B(H)
- S(e);N_GUARD::B(H),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- Tries
- Try
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
- Refutation
- P(b);
- Try
- B(D);XP(b)
- Threat
- DUALS(2)
- Vars
- S(e);OGATE,XR(E)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- Refutation
- B(a);CHECK,XB(D)
- Try
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
- Refutation
- P(b);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
- Refutation
- P(b);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
- Refutation
- P(b);
- Try
- B(D);XP(j)
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(E)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- Refutation
- P(b);
- Try
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
- Refutation
- P(b);
- Try
- R(B);
- Threat
- R1(B),XS(e)
- Vars
- S(e);N_GUARD,SBLOCK,XR(E)::QAB1(F)
- S(e);N_GUARD,XP(G)::B(H)
- R(i);N_GUARD,P_PINR(B)::S(I)
- R(i);N_GUARD::S(I)
- S(e);N_GUARD::B(H)
- S(e);N_GUARD::B(H),XS(e)
- Refutation
- R(i);
- Try
- R(E);
- Threat
- QAB1(F)
- Vars
- S(e);N_GUARD,SBLOCK,XR(B)::QAB1(F)
- R(i);N_GUARD::S(I)
- S(d);N_GUARD::R1(E)
- S(d);N_GUARD::R1(E),XS(d)
- S(e);N_GUARD::B(H)
- Refutation
- B(k);XP(G)
- Try
- P(G);CHECK
- Vars
- R(i);P_SPINR(i)::S(I)
- S(e);P_SPINS(e)::B(H)
- Refutation
- B(k);P_SPINB(k)
- Try
- P(G);CHECK
- Vars
- R(i);P_SPINR(i)::S(I)
- S(e);P_SPINS(e)::B(H)
- Refutation
- B(k);P_SPINB(k)
- Try
- Actual
- B(D);
- Threat
- R1(E)
- Vars
- S(e);OGATE,XR(B)::QAB1(F),XS(e)
- S(e);OGATE,XR(E)::QAB1(F),XS(e)
- S(e);N_GUARD,XP(G)::B(H)
- S(d);N_GUARD::R1(E),XS(d)
- R(i);N_GUARD::S(I)
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