MESON Chess Problem Database
Problem Display
PID: 234372 (8/b2B1pr1/2Nn1PQ1/4R3/K4pb1/3P1kq1/R5p1/2B4N w - - 0 1)
Ellerman, Arnoldo
Revista Romana de Sah, 1949
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Bxg4#
- 1...Qf2
- 2.Bxg4#
- 1...Qh2
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Bb8
- 2.Sd4#
- 1...Sc4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sb7
- 2.Qe4#
- 1...Sc8
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Qe1
- Tries
- 1.Rf2+?
- 1...Qxf2
- 2.Bxg4#
- 1...Bxf2!
- 1...Qxf2
- 1.Re1?
- threat
- 2.Se5#
- 1...Qxe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4
- 2.Qe4#
- 1...Bxd7!
- threat
- 1.Ree2?
- threat
- 2.Se5#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4
- 2.Qe4#
- 1...Bxd7!
- threat
- 1.Re3+?
- 1...Bxe3
- 2.Se5#
- 1...fxe3!
- 1...Bxe3
- 1.Ra5?
- threat
- 2.Se5#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4
- 2.Qe4#
- 1...Bxd7!
- threat
- 1.Rc5?
- threat
- 2.Sd4#
- 2.Se5#
- 1...Bxc5
- 2.Se5#
- 1...g1Q
- 2.Se5#
- 1...g1B
- 2.Se5#
- 1...Qe1
- 2.Sd4#
- 2.Bxg4#
- 1...Qf2
- 2.Se5#
- 2.Bxg4#
- 2.Rxf2#
- 1...Sc4
- 2.Sd4#
- 2.Qe4#
- 1...Sb5
- 2.Se5#
- 2.Qe4#
- 1...Sf5
- 2.Se5#
- 1...Bxd7!
- threat
- 1.Rd5?
- threat
- 2.Se5#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4
- 2.Qe4#
- 1...Bxd7!
- threat
- 1.Rf5?
- threat
- 2.Se5#
- 1...Qe1
- 2.Rxf4#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4!
- threat
- 1.Rg5?
- threat
- 2.Se5#
- 1...Sc4
- 2.Qe4#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Bxd7!
- threat
- 1.Rh5?
- threat
- 2.Se5#
- 1...Sc4
- 2.Qe4#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Bxd7!
- threat
- 1.Re6?
- threat
- 2.Se5#
- 1...Sc4
- 2.Qe4#
- 1...Bd4
- 2.Sxd4#
- 1...Qe1!
- threat
- 1.Re7?
- threat
- 2.Se5#
- 1...Sc4
- 2.Qe4#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Bxd7!
- threat
- 1.Re8?
- threat
- 2.Se5#
- 1...Sc4
- 2.Qe4#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Bxd7!
- threat
- 1.Rf2+?
- Keys
- 1.Rb5!
- threat
- 2.Se5#
- 1...Qe1
- 2.Bxg4#
- 1...Bd4
- 2.Sxd4#
- 1...Sc4
- 2.Qe4#
- threat
- 1.Rb5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 8
- Sets
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(f);N_GUARD::QAB1(I)
- S(f);N_GUARD::QAB1(I),XS(f)
- Tries
- Try
- R(C);CHECK
- Vars
- Q(c);XR(C)::B(J),XB(e)
- Refutation
- B(g);XR(C)
- Try
- R(F);
- Threat
- S(G)
- Vars
- Q(c);N_GUARD,XR(F)::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- S(f);N_GUARD::QAB1(I)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- S(G)
- Vars
- B(g);N_GUARD::S(G),XB(g)
- S(f);N_GUARD::QAB1(I)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);CHECK
- Vars
- B(g);XR(F)::S(G)
- Refutation
- P(d);XR(F)
- Try
- R(F);
- Threat
- S(G)
- Vars
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- S(f);N_GUARD::QAB1(I)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- B(g);XR(F)::S(G)
- P(a);::S(G)
- S(f);::S(G)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- S(G)
- Vars
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- S(f);N_GUARD::QAB1(I)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);P_PINP(d)
- Threat
- S(G)
- Vars
- Q(c);N_GUARD::R1(F),XP(d)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- S(f);
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD::QAB1(I)
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD::QAB1(I)
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD::QAB1(I)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- Q(c);
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD::QAB1(I)
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- R(F);
- Threat
- S(G)
- Vars
- S(f);N_GUARD::QAB1(I)
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- Refutation
- B(e);P_PINS(G),XB(J)
- Try
- Actual
- R(F);
- Threat
- S(G)
- Vars
- Q(c);N_GUARD::B(J),XB(e)
- B(g);N_GUARD::S(G),XB(g)
- S(f);N_GUARD::QAB1(I)
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