MESON Chess Problem Database
Problem Display
PID: 229879 (q1Br2b1/2P1B2P/pQ2pn1p/3Pk1bR/1N2pn2/3pN3/3K1R2/8 w - - 0 1)
Maeder, Thomas
Schweizerische Schachzeitung, 1986
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Sxc6#
- 1...Qa7
- 2.Sc6#
- 1...Qb8
- 2.Sc6#
- 1...Qxc8
- 2.Sc6#
- 1...Rd6
- 2.Bxd6#
- 1...Rxc8
- 2.Bd6#
- 1...Re8
- 2.Bd6#
- 1...Rf8
- 2.Bd6#
- 1...Se2
- 2.Bxf6#
- 1...Sg2
- 2.Bxf6#
- 1...Sh3
- 2.Bxf6#
- 1...Sg6
- 2.Bxf6#
- 1...exd5
- 2.Bxf6#
- 2.Qxf6#
- 1...Qc6
- Tries
- 1.Sxd3+?
- 1...Sxd3
- 2.Bxf6#
- 1...exd3!
- 1...Sxd3
- 1.Bb7?
- threat
- 2.Sc6#
- 1...exd5
- 2.Bxf6#
- 2.Qxf6#
- 1...Rd6
- 2.Bxd6#
- 1...Qxb7!
- threat
- 1.cxd8Q?
- threat
- 2.Bd6#
- 2.Bxf6#
- 2.Qdc7#
- 2.Qdd6#
- 1...Qxd5
- 2.Bxf6#
- 1...Qxc8
- 2.Bd6#
- 2.Bxf6#
- 2.Qdd6#
- 1...S4xd5
- 2.Bd6#
- 2.Qdd6#
- 1...S4xh5
- 2.Bd6#
- 2.Qdc7#
- 2.Qdd6#
- 1...S6xd5
- 2.Bd6#
- 2.Qdd6#
- 1...S6xh5
- 2.Bd6#
- 2.Qdc7#
- 2.Qdd6#
- 1...Sxh7
- 2.Bd6#
- 2.Qdc7#
- 2.Qdd6#
- 1...Qc6
- 2.Sxc6#
- 2.Bxf6#
- 1...Qb7
- 2.Bd6#
- 2.Bxf6#
- 2.Qdd6#
- 1...Qa7
- 2.Sc6#
- 2.Bd6#
- 2.Bxf6#
- 2.Qdd6#
- 1...Qb8
- 2.Sc6#
- 2.Bxf6#
- 1...Sg4
- 2.Bd6#
- 2.Qdc7#
- 2.Qdd6#
- 1...Sd7
- 2.Bd6#
- 2.Qdc7#
- 1...Se8!
- threat
- 1.cxd8B?
- threat
- 2.Bd6#
- 2.Bxf6#
- 2.Bc7#
- 1...Qxd5
- 2.Bxf6#
- 1...Qxc8
- 2.Bd6#
- 2.Bxf6#
- 1...S4xd5
- 2.Bd6#
- 1...S4xh5
- 2.Bd6#
- 2.Bc7#
- 1...S6xd5
- 2.Bd6#
- 1...S6xh5
- 2.Bd6#
- 2.Bc7#
- 1...Sxh7
- 2.Bd6#
- 2.Bc7#
- 1...Qc6
- 2.Sxc6#
- 1...Qb7
- 2.Bd6#
- 2.Bxf6#
- 1...Qa7
- 2.Sc6#
- 2.Bd6#
- 2.Bxf6#
- 1...Qb8
- 2.Sc6#
- 2.Bxf6#
- 1...Sg4
- 2.Bd6#
- 2.Bc7#
- 1...Sd7
- 2.Bd6#
- 2.Bc7#
- 1...Se8!
- threat
- 1.Sxd3+?
- Keys
- 1.Qc5!
- threat
- 2.Qc3#
- 1...Qxd5
- 2.Sc6#
- 1...Rxd5
- 2.Bd6#
- 1...S4xd5
- 2.Bxf6#
- 1...S6xd5
- 2.h8Q#
- 2.h8B#
- 1...exd5
- 2.Sc4#
- 1...Qc6
- 2.Sxc6#
- 1...Qa7
- 2.Sc6#
- 1...Se2
- 2.Bxf6#
- threat
- 1.Qc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(j);N_GUARD::S(D),XQ(j)
- Q(j);N_GUARD::S(D)
- Q(j);N_GUARD,XB(K)::S(D)
- R(k);N_GUARD::B(I),XR(k)
- R(k);N_GUARD,XB(K)::B(I)
- R(k);N_GUARD::B(I)
- S(c);P_PINS(C)::B(I),XS(h)
- Tries
- Try
- S(D);CHECK,XP(a)
- Vars
- S(c);P_PINS(C),XS(D)::B(I),XS(h)
- Refutation
- P(b);XS(D)
- Try
- B(K);
- Threat
- S(D)
- Vars
- R(k);N_GUARD::B(I),XR(k)
- Refutation
- Q(j);XB(K)
- Try
- P(H);XR(k)
- Threat
- DUALS(4)
- Vars
- Q(j);XP(E)::B(I),XS(h)
- Refutation
- S(h);
- Try
- P(H);XR(k)
- Threat
- DUALS(3)
- Vars
- Q(j);XP(E)::B(I),XS(h)
- S(c);P_PINS(C),XP(E)::B(I)
- S(h);XP(E)::B(I)
- Q(j);N_GUARD::S(D),XQ(j)
- Refutation
- S(h);
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- Q(j);N_GUARD,P_SPINQ(j),XP(E)::S(D)
- R(k);N_GUARD,P_SPINR(k),XP(E)::B(I)
- S(c);P_PINS(C),P_SPINS(c),XP(E)::B(I),XS(h)
- S(h);P_SPINS(h),XP(E)::P=Q
- P(g);P_SPINP(g),XP(E)::S(C)
- Q(j);N_GUARD::S(D),XQ(j)
- Q(j);N_GUARD::S(D)
- S(c);P_PINS(C)::B(I),XS(h)
Developed and maintained by Brian Stephenson.
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