MESON Chess Problem Database
Problem Display
PID: 63726 (3B4/pPp5/P1R1P3/1p3p2/1Pnk1p2/1B1N1Pp1/4Q1P1/1R2K3 w - - 0 1)
Tikkanen, Tapani
3rd HM., British Chess Magazine, 1969
#2
13 + 8
| 56 | The Problemist | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Bf6#
- 1...Sb2
- 2.Bf6#
- 1...Sd2
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Se3
- 2.Bf6#
- 1...Sa5
- 2.Bf6#
- 1...Sb6
- 2.Bf6#
- 1...Sd6
- 2.Bf6#
- 1...Kc3
- Tries
- 1.Sxf4?
- 1...Kc3
- 2.Qd2#
- 1...Sb2
- 2.Bf6#
- 1...Sd2
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 2.Rd1#
- 1...Se3
- 2.Bf6#
- 2.Qb2#
- 1...Sa5
- 2.Bf6#
- 2.Rd1#
- 1...Sb6
- 2.Bf6#
- 2.Rd1#
- 1...Sd6
- 2.Bf6#
- 2.Rd1#
- 1...Se5!
- 1...Kc3
- 1.Bxc4?
- threat
- 2.Bf6#
- 2.Qe5#
- 1...Kc3
- 2.Bf6#
- 2.Qb2#
- 1...bxc4!
- threat
- 1.Bf6+?
- 1...Se5
- 2.Bxe5#
- 1...Kd5!
- 1...Se5
- 1.Bxc7?
- 1...Kc3
- 2.Be5#
- 1...Kd5
- 2.Rd6#
- 1...Se5
- 2.Bxe5#
- 1...Sb2
- 2.Be5#
- 1...Sd2
- 2.Be5#
- 1...Sa3
- 2.Be5#
- 1...Se3
- 2.Be5#
- 1...Sa5
- 2.Be5#
- 1...Sb6
- 2.Be5#
- 1...Sd6!
- 1...Kc3
- 1.Rxc4+?
- 1...Kd5
- 2.Qe5#
- 1...bxc4!
- 1...Kd5
- 1.Rd6+?
- 1...Kc3
- 2.Qc2#
- 1...Sxd6
- 2.Bf6#
- 1...cxd6!
- 1...Kc3
- 1.Rxc7?
- 1...Kc3
- 2.Bf6#
- 1...Kd5
- 2.Qe5#
- 1...Sb2
- 2.Bf6#
- 1...Sd2
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Se3
- 2.Bf6#
- 1...Sa5
- 2.Bf6#
- 1...Sb6
- 2.Bf6#
- 1...Sd6
- 2.Bf6#
- 1...Se5!
- 1...Kc3
- 1.Qe4+?
- 1...Kc3
- 2.Bf6#
- 1...fxe4!
- 1...Kc3
- 1.b8Q?
- 1...Kc3
- 2.Bf6#
- 1...Se5
- 2.Qxa7#
- 1...Sb2
- 2.Bf6#
- 2.Qxa7#
- 1...Sd2
- 2.Bf6#
- 2.Qxa7#
- 1...Sa3
- 2.Bf6#
- 2.Qxa7#
- 1...Se3
- 2.Bf6#
- 2.Qxa7#
- 1...Sa5
- 2.Bf6#
- 2.Qxa7#
- 1...Sb6
- 2.Bf6#
- 1...Sd6
- 2.Bf6#
- 2.Qxa7#
- 1...Kd5!
- 1...Kc3
- 1.b8S?
- 1...Kc3
- 2.Bf6#
- 1...Kd5
- 2.Qe5#
- 1...Sb2
- 2.Bf6#
- 1...Sd2
- 2.Bf6#
- 1...Sa3
- 2.Bf6#
- 1...Se3
- 2.Bf6#
- 1...Sa5
- 2.Bf6#
- 1...Sb6
- 2.Bf6#
- 1...Sd6
- 2.Bf6#
- 1...Se5!
- 1...Kc3
- 1.b8B?
- 1...Kc3
- 2.Bf6#
- 1...Se5
- 2.Bxa7#
- 1...Sb2
- 2.Bxa7#
- 2.Bf6#
- 1...Sd2
- 2.Bxa7#
- 2.Bf6#
- 1...Sa3
- 2.Bxa7#
- 2.Bf6#
- 1...Se3
- 2.Bxa7#
- 2.Bf6#
- 1...Sa5
- 2.Bxa7#
- 2.Bf6#
- 1...Sb6
- 2.Bf6#
- 1...Sd6
- 2.Bxa7#
- 2.Bf6#
- 1...Kd5!
- 1...Kc3
- 1.Sxf4?
- Keys
- 1.Rd1!
- 1...Kc3
- 2.Qb2#
- 1...Kd5
- 2.Se5#
- 1...Se5
- 2.Sxe5#
- 2.Qxe5#
- 1...Sb2
- 2.Sxb2#
- 2.Bf6#
- 2.Qe5#
- 1...Sd2
- 2.Bf6#
- 1...Sa3
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxf4#
- 2.Se5#
- 2.Bf6#
- 2.Qe5#
- 1...Se3
- 2.Bf6#
- 2.Qb2#
- 1...Sa5
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxf4#
- 2.Se5#
- 2.Bf6#
- 2.Qe5#
- 1...Sb6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxf4#
- 2.Se5#
- 2.Bf6#
- 2.Qe5#
- 1...Sd6
- 2.Sc1#
- 2.Sb2#
- 2.Sf2#
- 2.Sxf4#
- 2.Se5#
- 2.Bf6#
- 2.Qe5#
- 1...Kc3
- 1.Rd1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- S(b);N_GUARD::B(M)
- Tries
- Try
- S(F);XP(d)
- Vars
- K(c);P_SPINS(b),S_FLIGHT::QAB1(C)
- S(b);N_GUARD::B(M)
- Refutation
- S(b);
- Try
- B(E);XS(b)
- Threat
- DUALS(2)
- Refutation
- P(e);XB(E)
- Try
- B(M);CHECK
- Vars
- S(b);N_GUARD,P_SPINS(b)::B(M),XS(b)
- Refutation
- K(c);P-FLIGHT,P_SPINS(b)
- Try
- B(M);XP(h)
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- K(c);P-FLIGHT,P_SPINS(b)::R1(J)
- S(b);N_GUARD::B(M),XS(b)
- S(b);N_GUARD::B(M)
- Refutation
- S(b);
- Try
- R(J);CHECK,XS(b)
- Vars
- K(c);P-FLIGHT::QAR1(C)
- Refutation
- P(e);XR(J)
- Try
- R(J);CHECK
- Vars
- K(c);S_FLIGHT::QAR1(C)
- S(b);XR(J)::B(M)
- Refutation
- P(h);XR(J)
- Try
- R(J);XP(h)
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- K(c);P-FLIGHT,P_SPINS(b)::QAR1(C)
- S(b);N_GUARD::B(M)
- Refutation
- S(b);
- Try
- Q(C);CHECK
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- Refutation
- P(f);XQ(C)
- Try
- P(L);
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- S(b);N_GUARD::QAB(L),XP(g)
- S(b);N_GUARD::B(M)
- Refutation
- K(c);P-FLIGHT,P_SPINS(b)
- Try
- P(L);
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- K(c);P-FLIGHT,P_SPINS(b)::QAR1(C)
- S(b);N_GUARD::B(M)
- Refutation
- S(b);
- Try
- P(L);
- Vars
- K(c);P_SPINS(b),S_FLIGHT::B(M)
- S(b);N_GUARD::B(L),XP(g)
- S(b);N_GUARD::B(M)
- Refutation
- K(c);P-FLIGHT,P_SPINS(b)
- Try
- Actual
- R(A);
- Vars
- K(c);P_SPINS(b),S_FLIGHT::QAB1(C)
- K(c);P-FLIGHT,P_SPINS(b)::R(A)+S(F)
- S(b);N_GUARD::B(M)
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