MESON Chess Problem Database
Problem Display
PID: 138099 (6B1/3p4/Q2p1pK1/1N1P3N/Rn1Pk1p1/bRr1n3/p3P3/1bB5 w - - 0 1)
Bonivento, Oscar
5th Prize, Pedagogusok Lapja, 1980-1981
#2
11 + 11
| 14744 | Nuova Antologia dei Problemisti Italiani | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Rxe3#
- 1...Rc4
- 2.Rxe3#
- 1...Rc5
- 2.Rxe3#
- 1...Rc6
- 2.Rxe3#
- 1...Rc7
- 2.Rxe3#
- 1...Rc8
- 2.Rxe3#
- 1...Sd1
- 2.Sxf6#
- 1...Sf1
- 2.Sxf6#
- 1...Sec2
- 2.Sxf6#
- 1...Sg2
- 2.Sxf6#
- 1...Sc4
- 2.Sxf6#
- 1...Sf5
- 2.Sxf6#
- 1...Sbc2
- 2.Sxc3#
- 1...Sd3
- 2.Sxc3#
- 1...Sxa6
- 2.Sxc3#
- 1...Sc6
- 2.Sxc3#
- 1...Rc2
- Tries
- 1.Raxb4?
- threat
- 2.Sxc3#
- 2.Sxd6#
- 1...Rxc1
- 2.Sxd6#
- 1...Rxb3
- 2.Sxd6#
- 1...Sxd5
- 2.Sxd6#
- 1...a1Q
- 2.Sxd6#
- 1...a1B
- 2.Sxd6#
- 1...Rc2
- 2.Sxd6#
- 2.Rxe3#
- 1...Rd3
- 2.Sxd6#
- 1...Rc4
- 2.Rxe3#
- 1...Rc5
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc6
- 2.Rxe3#
- 1...Rc7
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc8
- 2.Sxd6#
- 2.Rxe3#
- 1...Bb2
- 2.Sxd6#
- 1...Sd1
- 2.Sxd6#
- 2.Sxf6#
- 1...Sc4
- 2.Sxf6#
- 1...Sf5
- 2.Sxc3#
- 2.Sxf6#
- 1...Bxb4!
- threat
- 1.Qb6?
- threat
- 2.Sxc3#
- 2.Sxd6#
- 1...Rxc1
- 2.Sxd6#
- 1...Rxb3
- 2.Sxd6#
- 1...Sexd5
- 2.Sxd6#
- 1...a1Q
- 2.Sxd6#
- 1...a1B
- 2.Sxd6#
- 1...Rc2
- 2.Sxd6#
- 2.Rxe3#
- 1...Rd3
- 2.Sxd6#
- 1...Rc4
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc5
- 2.Rxe3#
- 1...Rc6
- 2.Rxe3#
- 1...Rc7
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc8
- 2.Sxd6#
- 2.Rxe3#
- 1...Bb2
- 2.Sxd6#
- 1...Sd1
- 2.Sxd6#
- 2.Sxf6#
- 1...Sc4
- 2.Sxc3#
- 2.Sxf6#
- 1...Sf5
- 2.Sxc3#
- 2.Sxf6#
- 1...Sbc2
- 2.Sxc3#
- 1...Sd3
- 2.Sxc3#
- 1...Sa6
- 2.Sxc3#
- 1...Sc6
- 2.Sxc3#
- 1...Sbxd5!
- threat
- 1.Qxd6?
- threat
- 2.Sg3#
- 2.Sxf6#
- 2.Qf4#
- 2.Qe7#
- 1...Sbxd5
- 2.Sg3#
- 1...Rc6
- 2.Sg3#
- 2.Sxf6#
- 2.Rxe3#
- 2.Qf4#
- 1...Sd1
- 2.Sxf6#
- 2.Qf4#
- 2.Qe7#
- 1...Sf1
- 2.Sxf6#
- 2.Qf4#
- 2.Qe7#
- 1...Sec2
- 2.Sxf6#
- 2.Qf4#
- 2.Qe7#
- 1...Sg2
- 2.Sxf6#
- 2.Qe7#
- 1...Sc4
- 2.Sxf6#
- 2.Qf4#
- 1...Sf5
- 2.Sxf6#
- 2.Qf4#
- 1...Sbc2
- 2.Sxc3#
- 2.Sg3#
- 2.Sxf6#
- 2.Qf4#
- 1...Sd3
- 2.Sxc3#
- 2.Sg3#
- 2.Sxf6#
- 1...Sa6
- 2.Sxc3#
- 2.Sg3#
- 2.Sxf6#
- 2.Qf4#
- 1...Sc6
- 2.Sxc3#
- 2.Sg3#
- 2.Sxf6#
- 2.Qf4#
- 1...g3
- 2.Sxg3#
- 2.Sxf6#
- 2.Qf4#
- 2.Qe7#
- 1...f5
- 2.Sg3#
- 2.Sf6#
- 2.Qf4#
- 2.Qe5#
- 2.Qe7#
- 1...Sexd5!
- threat
- 1.Qa7?
- threat
- 2.Sxc3#
- 2.Sxd6#
- 1...Rxc1
- 2.Sxd6#
- 1...Rxb3
- 2.Sxd6#
- 1...Sexd5
- 2.Sxd6#
- 1...a1Q
- 2.Sxd6#
- 1...a1B
- 2.Sxd6#
- 1...Rc2
- 2.Sxd6#
- 2.Rxe3#
- 1...Rd3
- 2.Sxd6#
- 1...Rc4
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc5
- 2.Rxe3#
- 1...Rc6
- 2.Rxe3#
- 1...Rc7
- 2.Sxd6#
- 2.Rxe3#
- 1...Rc8
- 2.Sxd6#
- 2.Rxe3#
- 1...Bb2
- 2.Sxd6#
- 1...Sd1
- 2.Sxd6#
- 2.Sxf6#
- 1...Sc4
- 2.Sxc3#
- 2.Sxf6#
- 1...Sf5
- 2.Sxc3#
- 2.Sxf6#
- 1...Sbc2
- 2.Sxc3#
- 1...Sd3
- 2.Sxc3#
- 1...Sa6
- 2.Sxc3#
- 1...Sc6
- 2.Sxc3#
- 1...Sbxd5!
- threat
- 1.Raxb4?
- Keys
- 1.Qa8!
- threat
- 2.Qe8#
- 1...Sexd5
- 2.Sxf6#
- 1...Sbxd5
- 2.Sxc3#
- 1...Rc8
- 2.Rxe3#
- 1...Sc4
- 2.Sxf6#
- 1...Sf5
- 2.Sxf6#
- 1...Sd3
- 2.Sxc3#
- 1...Sc6
- 2.Sxc3#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 11
- Sets
- R(d);OGATE::R1(C),XS(e)
- S(e);::S(H),XP(j)
- S(f);::S(F),XR(d)
- S(f);XQ(I)::S(F),XR(d)
- Tries
- Try
- R(D);XS(f)
- Threat
- DUALS(2)
- Vars
- R(d);XB(A)::S(F),XP(i)
- R(d);XR(C)::S(F),XP(i)
- S(e);XP(G)::S(F),XP(i)
- P(b);::S(F),XP(i)
- R(d);::S(F),XP(i)
- R(d);OGATE::R1(C),XS(e)
- B(c);::S(F),XP(i)
- S(e);::S(H),XP(j)
- Refutation
- B(c);XR(D)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(d);XB(A)::S(F),XP(i)
- R(d);XR(C)::S(F),XP(i)
- S(e);XP(G)::S(F),XP(i)
- P(b);::S(F),XP(i)
- R(d);::S(F),XP(i)
- R(d);OGATE::R1(C),XS(e)
- B(c);::S(F),XP(i)
- S(f);::S(F),XR(d)
- Refutation
- S(f);XP(G)
- Try
- Q(I);XP(i)
- Threat
- DUALS(4)
- Vars
- S(f);XP(G)::S(H)
- Refutation
- S(e);XP(G)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- R(d);XB(A)::S(F),XP(i)
- R(d);XR(C)::S(F),XP(i)
- S(e);XP(G)::S(F),XP(i)
- P(b);::S(F),XP(i)
- R(d);::S(F),XP(i)
- R(d);OGATE::R1(C),XS(e)
- B(c);::S(F),XP(i)
- S(f);::S(F),XR(d)
- Refutation
- S(f);XP(G)
- Try
- Actual
- Q(I);
- Threat
- QAR(I)
- Vars
- S(e);P_SPINS(e),XP(G)::S(H),XP(j)
- S(f);P_SPINS(f),XP(G)::S(F),XR(d)
- R(d);OGATE::R1(C),XS(e)
- S(e);::S(H),XP(j)
- S(f);::S(F),XR(d)
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