MESON Chess Problem Database
Problem Display
PID: 50479 (BB6/3K3Q/3n3P/ppR5/r1p1P1p1/4k1P1/1pPR4/1Nbb2N1 w - - 0 1)
Ellerman, Arnoldo
3rd HM., Szachy, 1949
#2
12 + 10
| 1997 | Ajedrez | 1954 |
| 5381 | Mind Sports Olympiad Solving Ty. | 2005 |
| 56 | The Problemist | 2005 |
| 102 | Probleemblad | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...Sf5
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sf7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...Se8
- 2.Bf4#
- 1...c3
- 2.Rxc3#
- 1...Sxe4
- Tries
- 1.Ba7?
- threat
- 2.Rxc4#
- 2.Rxb5#
- 2.Rcd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Sxe4
- 2.Re5#
- 2.Qxe4#
- 1...Sf5
- 2.Rxf5#
- 1...Sc8
- 2.Rxc8#
- 1...c3
- 2.Rxc3#
- 2.Rc4#
- 1...b4
- 2.Rxc4#
- 2.Rxa5#
- 2.Rb5#
- 2.Rcd5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Sb7!
- threat
- 1.Re2+?
- 1...Kd4
- 2.Rd5#
- 1...Bxe2!
- 1...Kd4
- 1.Rxc4?
- threat
- 2.Ba7#
- 2.Rc3#
- 1...Bxd2
- 2.Ba7#
- 1...Bxc2
- 2.Ba7#
- 1...Sxc4
- 2.Bf4#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...bxc4
- 2.Ba7#
- 1...Be2
- 2.Ba7#
- 2.Rxe2#
- 1...Ra3
- 2.Ba7#
- 1...Sf5
- 2.Bf4#
- 2.Rc3#
- 1...Sb7
- 2.Bf4#
- 2.Rc3#
- 1...Sc8
- 2.Bf4#
- 2.Rc3#
- 1...b4
- 2.Ba7#
- 1...Rxc4!
- threat
- 1.Rxb5?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...Sxb5
- 2.Bf4#
- 1...Sf5
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...c3!
- threat
- 1.Rcd5?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...c3
- 2.R5d3#
- 1...Sf5!
- threat
- 1.Rf5?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 1...Sxf5
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...c3
- 2.Rd3#
- 1...Sb7!
- threat
- 1.Rg5?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...Sb7
- 2.Bf4#
- 1...Sf5
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...c3!
- threat
- 1.Rh5?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...Sb7
- 2.Bf4#
- 1...Sf5
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...c3!
- threat
- 1.Rc6?
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 1...c3
- 2.Rxc3#
- 1...Sb7
- 2.Bf4#
- 1...Sc8
- 2.Bf4#
- 1...Sf5!
- threat
- 1.Qf5?
- threat
- 2.Qf2#
- 2.Qf4#
- 2.Qg5#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 2.Qf4#
- 1...Sxf5
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 2.Qg5#
- 1...Sf7
- 2.Bf4#
- 2.Qf2#
- 2.Qf4#
- 1...Bxd2!
- threat
- 1.Qf7?
- threat
- 2.Qf2#
- 2.Qf4#
- 1...Sxe4
- 2.Bf4#
- 2.Qf4#
- 1...Sxf7
- 2.Bf4#
- 1...Sb7
- 2.Qf4#
- 1...Be2
- 2.Qf4#
- 1...Bf3
- 2.Qf4#
- 1...Sf5
- 2.Bf4#
- 1...Bxd2!
- threat
- 1.Qg7?
- threat
- 2.Qc3#
- 2.Qd4#
- 2.Qg5#
- 1...Bxc2
- 2.Qd4#
- 2.Qg5#
- 1...Sxe4
- 2.Bf4#
- 2.Qd4#
- 1...Be2
- 2.Rxe2#
- 2.Qd4#
- 1...Sb7
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 2.Qg5#
- 1...Sf5
- 2.Bf4#
- 2.Qc3#
- 2.Qg5#
- 1...Sf7
- 2.Bf4#
- 2.Qc3#
- 2.Qd4#
- 1...c3
- 2.Rxc3#
- 2.Qxc3#
- 2.Qg5#
- 1...b4
- 2.Qd4#
- 2.Qg5#
- 1...Bxd2!
- threat
- 1.Qh8?
- threat
- 2.Qc3#
- 2.Qd4#
- 1...Bxc2
- 2.Qd4#
- 1...Sxe4
- 2.Bf4#
- 2.Qd4#
- 1...Be2
- 2.Rxe2#
- 2.Qd4#
- 1...Sb7
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 1...Sf5
- 2.Bf4#
- 2.Qc3#
- 1...c3
- 2.Rxc3#
- 2.Qxc3#
- 1...b4
- 2.Qd4#
- 1...Bxd2!
- threat
- 1.Ba7?
- Keys
- 1.Rc8!
- threat
- 2.Ba7#
- 1...Sxe4
- 2.Bf4#
- 2.Qxe4#
- 1...Sxc8
- 2.Bf4#
- 1...Sb7
- 2.Bf4#
- 1...Sf5
- 2.Bf4#
- 1...c3
- 2.Rxc3#
- threat
- 1.Rc8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- S(j);OGATE::B(L)
- P(f);OGATE::R(G),XP(f)
- Tries
- Try
- B(L);
- Threat
- DUALS(10)
- Vars
- S(j);::B(L)+R(G),XS(j)
- Refutation
- S(j);
- Try
- R(D);CHECK
- Vars
- K(d);S_FLIGHT::R1(G)
- Refutation
- B(b);XR(D)
- Try
- R(G);XP(f)
- Threat
- DUALS(2)
- Vars
- B(a);XR(D)::B(L)
- B(b);XP(C)::B(L)
- S(j);OGATE,XR(G)::B(L)
- P(i);XR(G)::B(L)
- R(e);::B(L)
- P(i);::B(L)
- Refutation
- R(e);XR(G)
- Try
- R(G);XP(i)
- Threat
- B(L)
- Vars
- S(j);OGATE,XR(G)::B(L)
- S(j);OGATE::B(L)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE,XP(F)::B(L)
- S(j);OGATE::B(L)
- P(f);N_GUARD::R1(G)
- Refutation
- S(j);
- Try
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE,XP(F)::B(L)
- S(j);OGATE,XR(G)::B(L)
- S(j);OGATE::B(L)
- P(f);N_GUARD::R1(D)
- Refutation
- S(j);
- Try
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE::B(L)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE::B(L)
- Refutation
- P(f);
- Try
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE,XP(F)::B(L)
- P(f);OGATE::R(G),XP(f)
- S(j);OGATE::B(L)
- Refutation
- S(j);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- S(j);OGATE,XQ(J)::B(L)
- B(b);::QAB1(J)
- Refutation
- B(a);XR(D)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- S(j);OGATE,XQ(J)::B(L)
- S(j);::QAB1(J)
- B(b);::QAB1(J)
- S(j);OGATE::B(L)
- Refutation
- B(a);XR(D)
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- S(j);::QAB1(J)
- Refutation
- B(a);XR(D)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- B(b);XP(C)::QAB1(J)
- S(j);::QAB1(J)
- R(e);::QAB1(J)
- P(i);::QAB1(J)
- Refutation
- B(a);XR(D)
- Try
- Actual
- R(G);
- Threat
- B(L)
- Vars
- S(j);OGATE,XR(G)::B(L)
- S(j);OGATE::B(L)
- P(f);OGATE::R(G),XP(f)
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