MESON Chess Problem Database
Problem Display
PID: 65385 (3Q4/pN3p1K/p7/2B2Rp1/P1k2N2/1p3n2/nP2p3/3rb2b w - - 0 1)
Heinonen, Unto
2nd Prize, Scacchi e Scienze Applicate 13. TT, 1995-1997
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sd6#
- 2.Qd3#
- 2.Qd5#
- 1...Rb1
- 2.Sd6#
- 2.Qd3#
- 2.Qd5#
- 1...Rc1
- 2.Sd6#
- 2.Qd3#
- 2.Qd5#
- 1...Rd2
- 2.Sa5#
- 1...Rd3
- 2.Qxd3#
- 1...Rd5
- 2.Qxd5#
- 1...Rd6
- 2.Sxd6#
- 1...Bd2
- 2.Sd6#
- 2.Qd3#
- 2.Qd5#
- 1...Bf2
- 2.Sa5#
- 1...Bg3
- 2.Sa5#
- 1...Bh4
- 2.Sa5#
- 1...Ba5
- 2.Sxa5#
- 1...Sc3
- 2.Sa5#
- 1...Sb4
- 2.Sa5#
- 1...Sd2
- 2.Sa5#
- 2.Sd6#
- 2.Qd3#
- 2.Qd4#
- 1...Sd4
- 2.Sd6#
- 1...Ra1
- Tries
- 1.Sd3?
- threat
- 2.Qd5#
- 1...Sd4
- 2.Se5#
- 2.Qxd4#
- 1...Sc3
- 2.Sa5#
- 1...Sb4
- 2.Sa5#
- 1...Sg1
- 2.Se5#
- 2.Qd4#
- 1...Sd2
- 2.Se5#
- 2.Sa5#
- 2.Qd4#
- 1...Sh2
- 2.Se5#
- 2.Qd4#
- 1...Sh4
- 2.Se5#
- 2.Qd4#
- 1...Se5
- 2.Sxe5#
- 2.Qd4#
- 1...Rxd3!
- threat
- 1.Rd5?
- threat
- 2.Sd6#
- 1...Rxd5
- 2.Qxd5#
- 1...gxf4!
- threat
- 1.Qa5?
- threat
- 2.Qxa6#
- 1...Bxa5
- 2.Sxa5#
- 1...Rd6
- 2.Sxd6#
- 1...Sc3
- 2.Qb4#
- 1...Sd4
- 2.Sd6#
- 1...Sb4!
- threat
- 1.Qb6?
- threat
- 2.Qxa6#
- 1...Rd6
- 2.Sxd6#
- 1...Sc3
- 2.Sa5#
- 2.Qb4#
- 1...Sb4
- 2.Sa5#
- 1...Sd4
- 2.Sd6#
- 1...a5
- 2.Qb5#
- 2.Qa6#
- 1...axb6!
- threat
- 1.Qd2?
- threat
- 2.Sa5#
- 2.Sd6#
- 1...Rxd2
- 2.Sa5#
- 1...Bxd2
- 2.Sd6#
- 1...a5
- 2.Sxa5#
- 2.Sd6#
- 1...Se5!
- threat
- 1.Qd4+?
- 1...Sxd4
- 2.Sd6#
- 1...Rxd4!
- 1...Sxd4
- 1.Qd6?
- threat
- 2.Qxa6#
- 1...Rxd6
- 2.Sxd6#
- 1...Sc3
- 2.Sa5#
- 1...Sb4
- 2.Sa5#
- 1...a5
- 2.Qa6#
- 1...Sd4!
- threat
- 1.Sd3?
- Keys
- 1.Qf6!
- threat
- 2.Qxa6#
- 1...Rd6
- 2.Sxd6#
- 1...Sc3
- 2.Sa5#
- 1...Sb4
- 2.Sa5#
- 1...Sd4
- 2.Sd6#
- 1...a5
- 2.Qa6#
- threat
- 1.Qf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(a);S_CUTB(b)::S(F)
- R(a);N_GUARD::QAB1(H),XR(a)
- R(a);N_GUARD::S(F),XR(a)
- B(b);N_GUARD::S(F)
- B(b);N_GUARD::S(F),XB(b)
- S(d);S_CUTB(b)::S(F)
- S(g);S_CUTR(a)::S(F)
- Tries
- Try
- S(C);
- Threat
- QAB1(H)
- Vars
- S(d);S_CUTB(b)::S(F)
- Refutation
- R(a);XS(C)
- Try
- R(E);
- Threat
- S(F)
- Vars
- R(a);OGATE,XR(E)::QAB1(H),XR(a)
- Refutation
- P(i);XS(C)
- Try
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- B(b);XQ(H)::S(F),XB(b)
- R(a);N_GUARD::S(F),XR(a)
- S(d);N_GUARD,S_CUTB(b)::QAR1(H)
- S(g);S_CUTR(a)::S(F)
- Refutation
- S(d);
- Try
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- R(a);N_GUARD::S(F),XR(a)
- S(d);S_CUTB(b)::S(F)
- S(g);S_CUTR(a)::S(F)
- Refutation
- P(k);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(a);XQ(H)::S(F)
- B(b);XQ(H)::S(F)
- Refutation
- S(g);
- Try
- Q(H);CHECK
- Vars
- S(g);XQ(H)::S(F)
- Refutation
- R(a);XQ(H)
- Try
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- R(a);XQ(H)::S(F),XR(a)
- S(d);S_CUTB(b)::S(F)
- P(j);::QAB(H)
- Refutation
- S(g);
- Try
- Actual
- Q(H);
- Threat
- QAB(H),XP(j)
- Vars
- R(a);N_GUARD::S(F),XR(a)
- S(d);S_CUTB(b)::S(F)
- S(g);S_CUTR(a)::S(F)
- P(j);::QAB(H)
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