MESON Chess Problem Database
Problem Display
PID: 88921 (6rr/2p1PP2/RB1kBQ2/2R2P2/1n1p3q/1K3NN1/8/8 w - - 0 1)
Myllyniemi, Matti Arvo
Problemista, 1972
#2
11 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxg3
- 2.Bc8#
- 1...Qg5
- 2.Se4#
- 1...Qh1
- 2.Se4#
- 2.Bc8#
- 1...Qh2
- 2.Se4#
- 2.Bc8#
- 1...Qh3
- 2.Se4#
- 2.Bc8#
- 1...Qe4
- 2.Sxe4#
- 1...Qf4
- 2.Bc8#
- 1...Qg4
- 2.Bc8#
- 1...Qh5
- 2.Se4#
- 2.Bc8#
- 1...Qh6
- 2.Se4#
- 1...Qh7
- 2.Se4#
- 2.Bc8#
- 1...Rg5
- 2.Bc8#
- 1...Sc6
- 2.Rd5#
- 1...Qxg3
- Tries
- 1.Sxh4?
- threat
- 2.Se4#
- 2.Bc8#
- 1...Rxh4
- 2.Bc8#
- 1...cxb6
- 2.Se4#
- 1...Rg4
- 2.Bc8#
- 1...Rg6
- 2.Se4#
- 1...Rc8
- 2.Se4#
- 2.Bxc8#
- 1...Rh6
- 2.Se4#
- 1...Sd5
- 2.Se4#
- 1...Rxg3+!
- threat
- 1.Bc4+?
- 1...Kd7
- 2.Rxc7#
- 2.Qe6#
- 1...Qxf6!
- 1...Kd7
- 1.Bd5+?
- 1...Kd7
- 2.Rxc7#
- 2.Qe6#
- 1...Qxf6!
- 1...Kd7
- 1.Bd7+?
- 1...Kxd7
- 2.Rxc7#
- 2.Qe6#
- 1...Qxf6!
- 1...Kxd7
- 1.e8Q?
- threat
- 2.Qe5#
- 2.Qd7#
- 2.Qee7#
- 1...Qxg3
- 2.Bc4#
- 2.Bd5#
- 2.Bd7#
- 2.Bc8#
- 2.Qfe7#
- 2.Qfd8#
- 2.Qd7#
- 2.Qee7#
- 1...Qxf6
- 2.Se4#
- 2.Qd7#
- 1...cxb6
- 2.Qe5#
- 2.Qee7#
- 1...Qe4
- 2.Sxe4#
- 2.Qfe7#
- 2.Qfd8#
- 2.Qd7#
- 2.Qee7#
- 1...Qf4
- 2.Bc4#
- 2.Bd5#
- 2.Bd7#
- 2.Bc8#
- 2.Qfe7#
- 2.Qfd8#
- 2.Qd7#
- 2.Qee7#
- 1...Sd3
- 2.Rd5#
- 2.Rc6#
- 2.Qc6#
- 2.Qd7#
- 2.Qee7#
- 1...Sd5
- 2.Rxd5#
- 2.Rc6#
- 2.Qe5#
- 2.Qc6#
- 2.Qd7#
- 1...Sc6
- 2.Rd5#
- 2.Rxc6#
- 2.Qxc6#
- 2.Qd7#
- 1...Rxe8!
- threat
- 1.fxg8S?
- threat
- 2.Qe5#
- 2.e8S#
- 1...Qxg3
- 2.Bc8#
- 2.e8S#
- 1...Qxf6
- 2.Se4#
- 2.e8S#
- 1...cxb6
- 2.Qe5#
- 1...Qe4
- 2.Sxe4#
- 2.e8S#
- 1...Qf4
- 2.Bc8#
- 2.e8S#
- 1...Qh5
- 2.Se4#
- 2.Bc8#
- 2.Qe5#
- 1...Sd3
- 2.e8S#
- 1...Sc6
- 2.Rd5#
- 2.e8S#
- 1...Rxg8!
- threat
- 1.f8Q?
- threat
- 2.Qe5#
- 2.e8S#
- 1...Qxg3
- 2.Bc8#
- 2.e8S#
- 1...Qxf6
- 2.Se4#
- 2.e8S#
- 1...Qe4
- 2.Sxe4#
- 2.e8S#
- 1...Qf4
- 2.Bc8#
- 2.e8S#
- 1...Sd3
- 2.e8S#
- 1...Sc6
- 2.Rd5#
- 2.e8S#
- 1...Rxf8!
- threat
- 1.f8B?
- threat
- 2.Qe5#
- 2.e8S#
- 1...Qxg3
- 2.Bc8#
- 2.e8S#
- 1...Qxf6
- 2.Se4#
- 2.e8S#
- 1...Qe4
- 2.Sxe4#
- 2.e8S#
- 1...Qf4
- 2.Bc8#
- 2.e8S#
- 1...Sd3
- 2.e8S#
- 1...Sc6
- 2.Rd5#
- 2.e8S#
- 1...Rxf8!
- threat
- 1.Sxh4?
- Keys
- 1.Rxc7!
- threat
- 2.Qe5#
- 1...Qxg3
- 2.Bc4#
- 1...Qxf6
- 2.Se4#
- 1...Qe4
- 2.Sxe4#
- 1...Qf4
- 2.Bc4#
- 1...Sd3
- 2.Ba5#
- 1...Sc6
- 2.Rd7#
- threat
- 1.Rxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- Q(c);N_GUARD,P_PINS(B),XS(C)::QAR(I)+B(H)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD::QAR(I)+B(H)
- R(f);S_CUTQ(c)::QAR(I)+B(H)
- S(a);N_GUARD,SBLOCK::R1(D)
- Tries
- Try
- S(B);XQ(c)
- Threat
- DUALS(2)
- Vars
- R(g);XS(B)::QAR(I)+B(H)
- P(e);P_SPINP(e),XB(G)::S(C)
- R(f);::QAR(I)+B(H)
- R(f);::S(C)
- R(g);::S(C)
- S(a);::S(C)
- Refutation
- R(f);CHECK,XS(C)
- Try
- B(H);CHECK
- Refutation
- Q(c);XQ(I)
- Try
- B(H);CHECK
- Refutation
- Q(c);XQ(I)
- Try
- B(H);CHECK
- Refutation
- Q(c);XQ(I)
- Try
- P(J);
- Threat
- DUALS(3)
- Refutation
- R(f);XQ(J)
- Try
- P(K);XR(f)
- Threat
- DUALS(2)
- Vars
- P(e);P_SPINP(e),XB(G)::QAB1(I)
- S(a);::P=S
- Refutation
- R(g);XS(K)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- S(a);::P=S
- Refutation
- R(f);XQ(K)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- S(a);::P=S
- Refutation
- R(f);XB(K)
- Try
- Actual
- R(D);XP(e)
- Threat
- QAB1(I)
- Vars
- Q(c);N_GUARD,P_PINS(B),XS(C)::QAR(I)+B(H)
- Q(c);N_GUARD,XQ(I)::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD::QAR(I)+B(H)
- S(a);N_GUARD::R(F)+B(G)
- S(a);SBLOCK::R1(D)
Developed and maintained by Brian Stephenson.
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