MESON Chess Problem Database
Problem Display
PID: 192931 (8/p1N3B1/Pp4Q1/R4BnK/1pkp1Rp1/3N4/2PP4/qrn1r2b w - - 0 1)
Rizzetti, Dante Hugo
1st Prize, Canadian Chess Chat, 1986
#2
11 + 12
| 16325 | Seleccion de Problemas de Dante Hugo Rizzetti (Kapros) | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Rxd4#
- 1...Qa3
- 2.Rxd4#
- 1...Qa4
- 2.Rxd4#
- 1...Qxa5
- 2.Rxd4#
- 1...Rb2
- 2.Rxd4#
- 1...Rd1
- 2.Se5#
- 1...Rf1
- 2.Se5#
- 1...Rg1
- 2.Se5#
- 1...Re4
- 2.Qc6#
- 1...Re5
- 2.Sxe5#
- 1...Be4
- 2.Se5#
- 1...Bc6
- 2.Qxc6#
- 1...Se2
- 2.Se5#
- 1...Sxd3
- 2.Bxd3#
- 1...Sf3
- 2.Qc6#
- 1...Se4
- 2.Se5#
- 2.Be6#
- 2.Qf7#
- 2.Qe6#
- 1...Qa2
- Tries
- 1.Sb2+?
- 1...Rxb2
- 2.Rxd4#
- 1...Qxb2!
- 1...Rxb2
- 1.Be4?
- threat
- 2.Se5#
- 2.Qc6#
- 1...Rxe4
- 2.Qc6#
- 1...Bxe4
- 2.Se5#
- 1...Sxd3
- 2.Bxd3#
- 1...Sxe4
- 2.Se5#
- 2.Qf7#
- 2.Qe6#
- 1...bxa5
- 2.Qc6#
- 1...Qa4
- 2.Se5#
- 1...Sb3
- 2.Se5#
- 1...Sf3
- 2.Bd5#
- 2.Qf7#
- 2.Qc6#
- 2.Qe6#
- 1...Se6
- 2.Se5#
- 2.Qxe6#
- 1...Sf7
- 2.Qxf7#
- 2.Qc6#
- 2.Qe6#
- 1...b3
- 2.Qc6#
- 1...b5
- 2.Qc6#
- 1...Qxa5!
- threat
- 1.Re4?
- threat
- 2.Se5#
- 2.Qc6#
- 1...Qxa5
- 2.Rxd4#
- 1...Rxe4
- 2.Qc6#
- 1...Bxe4
- 2.Se5#
- 1...Sxe4
- 2.Se5#
- 2.Be6#
- 2.Qf7#
- 2.Qe6#
- 1...bxa5
- 2.Qc6#
- 1...Qa4
- 2.Se5#
- 2.Rxd4#
- 1...Sb3
- 2.Se5#
- 1...Sf3
- 2.Be6#
- 2.Qf7#
- 2.Qc6#
- 2.Qe6#
- 1...Se6
- 2.Se5#
- 2.Bxe6#
- 2.Qxe6#
- 1...Sf7
- 2.Be6#
- 2.Qxf7#
- 2.Qc6#
- 2.Qe6#
- 1...b3
- 2.Qc6#
- 1...b5
- 2.Qc6#
- 1...Sxd3!
- threat
- 1.Qe8?
- threat
- 2.Qb5#
- 1...Qxa5
- 2.Rxd4#
- 1...Qa4
- 2.Rxd4#
- 1...Re5
- 2.Sxe5#
- 1...Bc6
- 2.Qxc6#
- 1...b5
- 2.Qxb5#
- 1...Rxe8!
- threat
- 1.Qxb6?
- threat
- 2.Rc5#
- 2.Qc5#
- 2.Qb5#
- 1...Qxa5
- 2.Rxd4#
- 2.Qxd4#
- 1...Sxd3
- 2.Bxd3#
- 2.Qb5#
- 1...Qa4
- 2.Rxd4#
- 2.Rc5#
- 2.Qxd4#
- 2.Qc5#
- 1...Re5
- 2.Sxe5#
- 1...Bc6
- 2.Rc5#
- 2.Qc5#
- 2.Qxc6#
- 1...Sb3
- 2.Qxb4#
- 2.Qb5#
- 1...Se4
- 2.Se5#
- 2.Be6#
- 2.Qb5#
- 2.Qe6#
- 1...Se6
- 2.Qb5#
- 1...axb6!
- threat
- 1.Sb2+?
- Keys
- 1.Bd7!
- threat
- 2.Bb5#
- 1...Qxa5
- 2.Rxd4#
- 1...Sxd3
- 2.Qxd3#
- 1...Qa4
- 2.Rxd4#
- 1...Re5
- 2.Sxe5#
- 1...Bc6
- 2.Qxc6#
- 1...b5
- 2.Bxb5#
- threat
- 1.Bd7!
This is a version of 123735
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- Q(a);N_GUARD::R1(D),XP(h)
- Q(a);N_GUARD,XR(E)::R1(D),XP(h)
- R(b);S_CUTQ(a)::R1(D),XP(h)
- R(d);N_GUARD::S(C)
- R(d);N_SPINP(h),S_CUTB(e)::QAR2(I)
- R(d);N_GUARD::S(C),XR(d)
- B(e);N_SPINP(h),S_CUTR(d)::S(C)
- B(e);N_GUARD::QAR2(I),XB(e)
- S(c);S_CUTR(d)::S(C)
- S(c);OGATE,XS(C)::B(F),XS(c)
- S(j);S_CUTB(e)::QAR2(I)
- Tries
- Try
- S(C);CHECK
- Vars
- R(b);XS(C)::R1(D),XP(h)
- Refutation
- Q(a);XS(C)
- Try
- B(F);N_PINP(h)
- Threat
- DUALS(2)
- Vars
- R(d);XB(F)::QAR2(I)
- B(e);XB(F)::S(C)
- S(c);OGATE,XS(C)::B(F),XS(c)
- P(k);XR(E)::QAR2(I)
- Q(a);::S(C)
- S(c);::S(C)
- P(f);::QAR2(I)
- P(k);::QAR2(I)
- Refutation
- Q(a);XR(E)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,XR(E)::R1(D),XP(h)
- R(d);N_SPINP(h),XR(D)::QAR2(I)
- B(e);N_SPINP(h),XR(D)::S(C)
- P(k);XR(E)::QAR2(I)
- S(c);::S(C)
- P(f);::QAR2(I)
- P(k);::QAR2(I)
- Refutation
- S(c);XS(C)
- Try
- Q(I);
- Threat
- QAB1(I)
- Vars
- Q(a);N_GUARD,XR(E)::R1(D),XP(h)
- Q(a);N_GUARD::R1(D),XP(h)
- R(d);N_GUARD::S(C),XR(d)
- B(e);N_GUARD::QAR2(I),XB(e)
- P(k);::QAB1(I),XP(k)
- Refutation
- R(d);XQ(I)
- Try
- Q(I);XP(k)
- Threat
- DUALS(3)
- Vars
- R(d);N_GUARD::S(C),XR(d)
- S(j);::QAB1(I)
- Refutation
- P(l);XQ(I)
- Try
- Actual
- B(F);
- Threat
- B(F)
- Vars
- Q(a);N_GUARD,XR(E)::R1(D),XP(h)
- S(c);OGATE,XS(C)::QAB1(I),XS(c)
- Q(a);N_GUARD::R1(D),XP(h)
- R(d);N_GUARD::S(C),XR(d)
- B(e);N_GUARD::QAR2(I),XB(e)
- P(k);::B(F),XP(k)
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