MESON Chess Problem Database
Problem Display
PID: 198443 (8/1B1N1pq1/KB2p3/5n2/2kPp2Q/1Rb1p3/2P5/3N1b2 w - - 0 1)
Markkola, Paavo Johannes
Suomen Shakki, 1986
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sxe5#
- 1...Qh6
- 2.Se5#
- 1...Qf8
- 2.Se5#
- 1...Qg1
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Qg4
- 2.Se5#
- 1...Qg5
- 2.Se5#
- 1...Qg6
- 2.Se5#
- 1...Qh7
- 2.Se5#
- 1...Qg8
- 2.Se5#
- 1...Be1
- 2.Sb2#
- 1...Bb2
- 2.Sxb2#
- 1...Bd2
- 2.Sb2#
- 1...Bb4
- 2.Sb2#
- 1...Ba5
- 2.Sb2#
- 1...Sg3
- 2.Sxe3#
- 1...Sxd4
- 2.Sxe3#
- 1...Sxh4
- 2.Sxe3#
- 1...Sd6
- 2.Sxe3#
- 1...Sh6
- 2.Sxe3#
- 1...Se7
- 2.Sxe3#
- 1...Qe5
- Tries
- 1.Bc5?
- threat
- 2.Sb6#
- 2.Rxc3#
- 1...Bxd4
- 2.Rb4#
- 1...Sxd4
- 2.Sxe3#
- 2.Rxc3#
- 1...Ba1
- 2.Sb6#
- 2.Rb4#
- 1...Be1
- 2.Sb2#
- 2.Sb6#
- 1...Bb2
- 2.Sxb2#
- 2.Sb6#
- 2.Rb4#
- 1...Bd2
- 2.Sb2#
- 2.Sb6#
- 1...Bb4
- 2.Sb2#
- 2.Sb6#
- 2.Rxb4#
- 1...Ba5
- 2.Sb2#
- 1...Qxd4!
- threat
- 1.Qe1?
- threat
- 2.Qxc3#
- 1...Bxe1
- 2.Sb2#
- 1...Bxd4
- 2.Rb4#
- 2.Qb4#
- 1...Ba1
- 2.Rb4#
- 2.Qb4#
- 1...Bb2
- 2.Sxb2#
- 2.Rb4#
- 2.Qb4#
- 1...Bd2
- 2.Sb2#
- 1...Bb4
- 2.Sb2#
- 2.Rxb4#
- 2.Qxb4#
- 1...Ba5
- 2.Sb2#
- 1...Qxd4!
- threat
- 1.Qe7?
- threat
- 2.Rxc3#
- 2.Qc5#
- 1...Bxd4
- 2.Rb4#
- 2.Qb4#
- 1...Sxe7
- 2.Sxe3#
- 1...Qe5
- 2.Sxe5#
- 2.Rxc3#
- 1...Qf8
- 2.Se5#
- 2.Rxc3#
- 1...Ba1
- 2.Rb4#
- 2.Qb4#
- 2.Qc5#
- 1...Be1
- 2.Sb2#
- 2.Qc5#
- 1...Bb2
- 2.Sxb2#
- 2.Rb4#
- 2.Qb4#
- 2.Qc5#
- 1...Bd2
- 2.Sb2#
- 2.Qc5#
- 1...Bb4
- 2.Sb2#
- 2.Rxb4#
- 2.Qxb4#
- 1...Ba5
- 2.Sb2#
- 2.Qc5#
- 1...Sd6
- 2.Sxe3#
- 1...Qxd4!
- threat
- 1.Bc5?
- Keys
- 1.Qxe4!
- threat
- 2.Qc6#
- 1...Qxd4
- 2.Se5#
- 1...Bxd4
- 2.Sb2#
- 1...Sxd4
- 2.Sxe3#
- 1...Qe5
- 2.Sxe5#
- 1...Qf8
- 2.Se5#
- 1...Qg2
- 2.Se5#
- 1...Bg2
- 2.Qd3#
- 1...Bb4
- 2.Sb2#
- 1...Se7
- 2.Sxe3#
- threat
- 1.Qxe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 15
- Sets
- Q(i);N_GUARD::S(I),XQ(i)
- Q(i);N_GUARD::S(I)
- B(b);N_GUARD::S(A)
- B(b);N_GUARD::S(A),XB(b)
- S(f);N_GUARD::S(A),XP(c)
- S(f);N_GUARD,XP(D)::S(A),XP(c)
- S(f);N_GUARD,XQ(E)::S(A),XP(c)
- Tries
- Try
- B(G);
- Threat
- DUALS(2)
- Vars
- B(b);N_GUARD,XP(D)::R1(C)
- B(b);N_GUARD::S(A)
- Refutation
- Q(i);XP(D)
- Try
- Q(E);
- Threat
- QAR1(E),XB(b)
- Vars
- B(b);N_GUARD,XQ(E)::S(A)
- B(b);N_GUARD::S(A)
- Refutation
- Q(i);XP(D)
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- S(f);N_GUARD,XQ(E)::S(A),XP(c)
- S(f);N_GUARD::S(A),XP(c)
- Refutation
- Q(i);XP(D)
- Try
- Actual
- Q(E);XP(e)
- Threat
- QAR2(E)
- Vars
- Q(i);N_GUARD,P_SPINQ(i),XP(D)::S(I)
- B(b);N_GUARD,P_SPINB(b),XP(D)::S(A)
- S(f);N_GUARD,P_SPINS(f),XP(D)::S(A),XP(c)
- Q(i);N_GUARD::S(I),XQ(i)
- Q(i);N_GUARD::S(I)
- B(a);N_GUARD::QAB1(E)
- B(b);N_GUARD::S(A)
- S(f);N_GUARD::S(A),XP(c)
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