MESON Chess Problem Database
Problem Display
PID: 115649 (Q7/8/2N5/K1kq1R1B/5B2/P5R1/n2NP3/6b1 w - - 0 1)
Dragoescu, Radu
The Independent, 1990
#2
10 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Rc3#
- 1...Sc3
- 2.Rxc3#
- 1...Sb4
- 2.Rc3#
- 2.axb4#
- 1...Sc1
- Tries
- 1.Sd4?
- threat
- 2.S4b3#
- 2.Se6#
- 2.Rxd5#
- 2.Qxd5#
- 2.Qa7#
- 1...Kxd4+
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxf5
- 2.S4b3#
- 1...Bxd4
- 2.Rxd5#
- 2.Qxd5#
- 2.Qc8#
- 1...Sc1
- 2.Se6#
- 2.Rxd5#
- 2.Qxd5#
- 2.Qa7#
- 1...Sc3
- 2.S4b3#
- 2.Se6#
- 2.Qa7#
- 1...Sb4
- 2.S4b3#
- 2.Se6#
- 2.Qa7#
- 1...Qe5!
- threat
- 1.Se7?
- threat
- 2.Rxd5#
- 2.Qxd5#
- 2.Qa7#
- 1...Kd4+
- 2.Rxd5#
- 2.Qxd5#
- 1...Qxf5
- 2.Qa7#
- 1...Sc3
- 2.Qa7#
- 1...Sb4
- 2.Qa7#
- 1...Qe5!
- threat
- 1.Bf3?
- threat
- 2.Rxd5#
- 1...Qxf5
- 2.Qa7#
- 1...Qe5
- 2.Qf8#
- 1...Sb4
- 2.axb4#
- 1...Sc3!
- threat
- 1.Rb3?
- threat
- 2.Rb5#
- 1...Sc3
- 2.Rxc3#
- 1...Sb4
- 2.Rc3#
- 2.axb4#
- 1...Qe5!
- threat
- 1.Rd3?
- threat
- 2.Rdxd5#
- 2.Rfxd5#
- 1...Qxf5
- 2.Bd6#
- 1...Qe5
- 2.Rxe5#
- 1...Sc3
- 2.Rxc3#
- 1...Sb4
- 2.Rc3#
- 2.axb4#
- 1...Bd4!
- threat
- 1.Rg6?
- threat
- 2.Bd6#
- 2.Qa7#
- 2.Qf8#
- 1...Qe5
- 2.Rxe5#
- 1...Bh2
- 2.Be3#
- 2.Qa7#
- 2.Qf8#
- 1...Qxf5!
- threat
- 1.Qb7?
- threat
- 2.Qb5#
- 2.Qb6#
- 1...Qxf5
- 2.Qb5#
- 1...Sc3
- 2.Rxc3#
- 2.Qb6#
- 1...Qe5!
- threat
- 1.Qa6?
- threat
- 2.Sb3#
- 2.Se4#
- 2.Qc4#
- 2.Qb5#
- 2.Qb6#
- 1...Qxf5
- 2.Qc4#
- 2.Qb5#
- 1...Sc1
- 2.Se4#
- 2.Rc3#
- 2.Qc4#
- 2.Qb5#
- 2.Qb6#
- 1...Sc3
- 2.Sb3#
- 2.Rxc3#
- 2.Qc4#
- 2.Qb6#
- 1...Qe5!
- threat
- 1.Qd8?
- threat
- 2.Qb6#
- 2.Qxd5#
- 2.Qd6#
- 1...Kxc6+
- 2.Qxd5#
- 1...Qxf5
- 2.Qd6#
- 1...Sc3
- 2.Rxc3#
- 2.Qb6#
- 2.Qd6#
- 1...Sb4
- 2.Rc3#
- 2.Qb6#
- 2.Qd6#
- 1...Qe5!
- threat
- 1.Qg8?
- threat
- 2.Qxd5#
- 1...Kxc6+
- 2.Qxd5#
- 1...Qxf5
- 2.Qc4#
- 1...Sc3
- 2.Rxc3#
- 1...Sb4
- 2.Rc3#
- 1...Qe5!
- threat
- 1.Sd4?
- Keys
- 1.Bf7!
- threat
- 2.Rxd5#
- 1...Qxf5
- 2.Sb3#
- 1...Qe5
- 2.Se4#
- 1...Sc3
- 2.Rxc3#
- 1...Sb4
- 2.Rc3#
- 2.axb4#
- threat
- 1.Bf7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::R(D)
- S(b);N_GUARD::R(D),XS(b)
- Tries
- Try
- S(I);
- Threat
- DUALS(5)
- Vars
- Q(d);N_SPINQ(d),XR(G)::S(I)
- Refutation
- Q(d);
- Try
- S(I);
- Threat
- DUALS(3)
- Vars
- Q(d);N_SPINQ(d),XR(G)::QAB(J)
- S(b);::QAB(J)
- Refutation
- Q(d);
- Try
- B(H);
- Threat
- R1(G),XQ(d)
- Vars
- Q(d);N_SPINQ(d),XR(G)::QAB(J)
- Q(d);::QAB(J)
- S(b);OGATE::P(C),XS(b)
- Refutation
- S(b);
- Try
- R(D);
- Threat
- R1(D)
- Vars
- S(b);N_GUARD::R(D),XS(b)
- Refutation
- Q(d);
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(d);N_SPINQ(d),XR(G)::B(E)
- Q(d);OGATEB::R(G),XQ(d)
- S(b);N_GUARD::R(D),XS(b)
- Refutation
- B(a);
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- Q(d);OGATEB::R(G),XQ(d)
- Refutation
- Q(d);N_SPINQ(d),XR(G)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(d);N_SPINQ(d),XR(G)::QAR1(J)
- Refutation
- Q(d);
- Try
- Q(J);
- Threat
- DUALS(5)
- Refutation
- Q(d);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- K(c);CHECK,N_SPINQ(d),P-FLIGHT,XS(I)::QAB1(J),XQ(d)
- Q(d);N_SPINQ(d),XR(G)::QAB1(J)
- Refutation
- Q(d);
- Try
- Q(J);
- Threat
- QAR1(J),XQ(d)
- Vars
- K(c);CHECK,N_SPINQ(d),P-FLIGHT,XS(I)::QAB1(J),XQ(d)
- Q(d);N_SPINQ(d),OGATE,XR(G)::QAR1(J)
- S(b);N_GUARD::R(D),XS(b)
- S(b);N_GUARD::R(D)
- Refutation
- Q(d);
- Try
- Actual
- B(H);
- Threat
- R1(G),XQ(d)
- Vars
- Q(d);N_SPINQ(d),XR(G)::S(A)
- Q(d);::S(A)
- S(b);N_GUARD::R(D),XS(b)
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