MESON Chess Problem Database
Problem Display
PID: 42297 (8/b1pp4/2N4Q/r1kN1p2/pR6/3R4/1p4r1/1K4nB w - - 0 1)
Heinonen, Unto
3rd Prize, 6X60, 1978
#2
7 + 10
| 3750 | FIDE Album (1977-1979) | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Rd2
- 2.Rc3#
- 1...Re2
- 2.Rc3#
- 1...Rf2
- 2.Rc3#
- 1...Rh2
- 2.Rc3#
- 1...Rg5
- 2.Rc3#
- 1...Rg7
- 2.Rc3#
- 1...Rg8
- 2.Rc3#
- 1...dxc6
- 2.Qf8#
- 1...Rd2
- Tries
- 1.Sc3?
- threat
- 2.Rd5#
- 1...dxc6
- 2.Qf8#
- 1...Rb5
- 2.Sxa4#
- 1...Rd2
- 2.Qe3#
- 1...Rg6
- 2.Qe3#
- 1...d5
- 2.Rxd5#
- 1...d6!
- threat
- 1.Sb6?
- threat
- 2.Sxd7#
- 2.Rc3#
- 2.Rd5#
- 1...cxb6
- 2.Qd6#
- 1...dxc6
- 2.Qf8#
- 1...Rb5
- 2.Sxa4#
- 2.Sxd7#
- 1...d6
- 2.Rc3#
- 1...Rg6
- 2.Sxd7#
- 2.Qe3#
- 1...Rc2
- 2.Sxd7#
- 2.Rd5#
- 2.Qe3#
- 1...Rd2
- 2.Sxd7#
- 2.Rc3#
- 2.Qe3#
- 1...Rg3
- 2.Sxd7#
- 2.Rd5#
- 1...Rg4
- 2.Sxd7#
- 2.Rd5#
- 1...Rg7
- 2.Rc3#
- 2.Rd5#
- 2.Qe3#
- 1...Se2
- 2.Sxd7#
- 2.Rd5#
- 1...d5
- 2.Sd7#
- 2.Rc3#
- 2.Rxd5#
- 1...Bxb6!
- threat
- 1.Sxc7?
- threat
- 2.Rc3#
- 2.Rd5#
- 2.Qd6#
- 1...dxc6
- 2.Qf8#
- 2.Qd6#
- 1...d6
- 2.Rc3#
- 2.Qxd6#
- 1...Rg6
- 2.Qe3#
- 1...Rc2
- 2.Rd5#
- 2.Qe3#
- 2.Qd6#
- 1...Rd2
- 2.Rc3#
- 2.Qe3#
- 2.Qd6#
- 1...Rg3
- 2.Rd5#
- 2.Qd6#
- 1...Rg4
- 2.Rd5#
- 2.Qd6#
- 1...Se2
- 2.Rd5#
- 2.Qd6#
- 1...d5
- 2.Rc3#
- 2.Rxd5#
- 1...Rb5!
- threat
- 1.Sde7?
- threat
- 2.Rc3#
- 2.Rd5#
- 2.Qe3#
- 1...Rb5
- 2.Qe3#
- 1...Rg6
- 2.Rd5#
- 2.Qe3#
- 1...Rc2
- 2.Rd5#
- 2.Qe3#
- 1...Rd2
- 2.Rc3#
- 2.Qe3#
- 1...Re2
- 2.Rc3#
- 2.Rd5#
- 1...Rg3
- 2.Rd5#
- 1...Rg4
- 2.Rd5#
- 1...Rg5
- 2.Rc3#
- 2.Rd5#
- 1...Se2
- 2.Rd5#
- 1...Sf3
- 2.Rc3#
- 2.Rd5#
- 1...f4
- 2.Rc3#
- 2.Rd5#
- 1...d5
- 2.Rc3#
- 2.Rxd5#
- 1...dxc6!
- threat
- 1.Sxa5?
- threat
- 2.Sb7#
- 1...d6
- 2.Qe3#
- 1...Rg6!
- threat
- 1.Se5?
- threat
- 2.Sxd7#
- 1...Rg7
- 2.Rc3#
- 1...d6
- 2.Qe3#
- 1...Rg6!
- threat
- 1.Qe3+?
- 1...Kxc6
- 2.Se7#
- 1...Kd6!
- 1...Kxc6
- 1.Sc3?
- Keys
- 1.Sf6!
- threat
- 2.Sxd7#
- 1...Kxc6
- 2.Sxd7#
- 1...dxc6
- 2.Qf8#
- 1...d5
- 2.Sd7#
- 1...Rg7
- 2.Qe3#
- 1...d6
- 2.Rc3#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 6
- Sets
- R(c);::R(C)
- P(j);N_GUARD,SBLOCK,XS(F)::QAB(G)
- Tries
- Try
- S(E);
- Threat
- R1(C)
- Vars
- P(j);N_GUARD,SBLOCK,XS(F)::QAB(G)
- R(e);N_GUARD::S(E),XP(d)
- R(c);::QAB(G)
- P(j);::R1(C),XP(j)
- Refutation
- P(j);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- P(i);N_GUARD,XS(E)::QAB1(G)
- P(j);N_GUARD,SBLOCK,XS(F)::QAB(G)
- P(j);::R(C)
- Refutation
- B(h);XS(E)
- Try
- S(E);XP(i)
- Threat
- DUALS(3)
- Vars
- R(c);::QAB(G)
- Refutation
- R(e);
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- R(e);::QAB(G)
- R(c);::R1(C)
- S(a);::R1(C)
- Refutation
- P(j);XS(F)
- Try
- S(F);XR(e)
- Threat
- S(F)
- Vars
- P(j);SBLOCK::QAB(G)
- Refutation
- R(c);
- Try
- S(F);
- Threat
- S(F),XP(j)
- Vars
- R(c);::R(C)
- P(j);SBLOCK::QAB(G)
- Refutation
- R(c);
- Try
- Q(G);CHECK
- Vars
- K(f);P-FLIGHT,XS(F)::S(E)
- Refutation
- K(f);S_FLIGHT
- Try
- Actual
- S(E);
- Threat
- S(E),XP(j)
- Vars
- K(f);P-FLIGHT,P_SPINR(c),XS(F)::QAR(G)+S(E),XP(j)
- P(j);N_GUARD,SBLOCK,XS(F)::QAB(G)
- P(j);::S(E)
- R(c);::QAB(G)
- P(j);SBLOCK::R(C)
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