MESON Chess Problem Database
Problem Display
PID: 7512 (2b1BR2/2K3Pp/p2Q3p/np2N1pr/1p1Nk2n/2Rp1p2/3B2P1/1q4r1 w - - 0 1)
Macleod, Norman Alasdair
The Problemist, 1990
#2
10 + 15
SOLUTION
- SOUND
- Sets
- 1...Sf5
- 2.gxf3#
- 1...Sg6
- 2.gxf3#
- 1...Sb3
- 2.Bc6#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 1...g4
- 2.Rf4#
- 1...Sf5
- Tries
- 1.Sc2?
- threat
- 2.Qd4#
- 1...dxc2
- 2.Re3#
- 1...Sf5
- 2.gxf3#
- 1...Sb3
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Qxc2!
- threat
- 1.Se2?
- threat
- 2.Sg3#
- 2.Qd4#
- 1...Rxg2
- 2.Qd4#
- 1...dxe2
- 2.Re3#
- 1...Qe1
- 2.Qd4#
- 1...Sf5
- 2.gxf3#
- 1...Sb3
- 2.Sg3#
- 2.Bc6#
- 1...Sc6
- 2.Sg3#
- 2.Bxc6#
- 1...fxe2!
- threat
- 1.Sb3?
- threat
- 2.Sc5#
- 2.Qd4#
- 1...Sxb3
- 2.Bc6#
- 1...Sf5
- 2.Sc5#
- 2.gxf3#
- 1...Sc6
- 2.Sc5#
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 2.Qd4#
- 1...Qxb3!
- threat
- 1.Sdxf3?
- threat
- 2.Qd4#
- 1...Sxf3
- 2.gxf3#
- 1...Sb3
- 2.Bc6#
- 2.Qc6#
- 1...Sc6
- 2.Bxc6#
- 2.Qxc6#
- 1...Sf5!
- threat
- 1.Sxb5?
- threat
- 2.Qd4#
- 1...Sf5
- 2.gxf3#
- 1...Sb3
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...axb5!
- threat
- 1.Sf5?
- threat
- 2.Sg3#
- 2.Qd4#
- 1...Rxg2
- 2.Qd4#
- 1...Sxf5
- 2.gxf3#
- 1...Qe1
- 2.Qd4#
- 1...Sb3
- 2.Sg3#
- 2.Bc6#
- 1...Sc6
- 2.Sg3#
- 2.Bxc6#
- 1...Bxf5!
- threat
- 1.Sdc6?
- threat
- 2.Qd4#
- 1...Sxc6
- 2.Bxc6#
- 1...Sf5
- 2.gxf3#
- 1...Sb3!
- threat
- 1.Se6?
- threat
- 2.Sc5#
- 2.Qd4#
- 1...Sf5
- 2.Sc5#
- 2.gxf3#
- 1...Sb3
- 2.Bc6#
- 1...Sc6
- 2.Sc5#
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 2.Qd4#
- 1...Bxe6!
- threat
- 1.Sxd3?
- threat
- 2.Sf2#
- 2.Sc5#
- 2.Qe5#
- 1...Rxg2
- 2.Sc5#
- 2.Qe5#
- 1...bxc3
- 2.Sf2#
- 2.Sc5#
- 1...Qe1
- 2.Sc5#
- 2.Qe5#
- 1...Qf1
- 2.Sc5#
- 2.Qe5#
- 1...Rf1
- 2.Sc5#
- 2.Qe5#
- 1...Sg6
- 2.Sf2#
- 2.Sc5#
- 2.gxf3#
- 1...Sb3
- 2.Sf2#
- 2.Bc6#
- 2.Qe5#
- 1...Sc4
- 2.Sf2#
- 2.Sc5#
- 2.Bc6#
- 1...Sc6
- 2.Sf2#
- 2.Sc5#
- 2.Bxc6#
- 1...Sb7
- 2.Sf2#
- 2.Bc6#
- 2.Qe5#
- 1...f2
- 2.Sxf2#
- 2.Sc5#
- 2.Qe5#
- 1...g4
- 2.Sf2#
- 2.Rf4#
- 1...Qxd3!
- threat
- 1.Sexf3?
- threat
- 2.Qe5#
- 1...Sxf3
- 2.gxf3#
- 1...Sc4
- 2.Bc6#
- 2.Qc6#
- 1...Sc6
- 2.Bxc6#
- 2.Qxc6#
- 1...g4
- 2.Rf4#
- 1...Sg6!
- threat
- 1.Sc4?
- threat
- 2.Qe5#
- 1...Sxc4
- 2.Bc6#
- 1...Sg6
- 2.gxf3#
- 1...Sc6
- 2.Bxc6#
- 1...g4
- 2.Rf4#
- 1...bxc4!
- threat
- 1.Sg4?
- threat
- 2.Sf2#
- 2.Sf6#
- 2.Qe5#
- 1...Rxg2
- 2.Sf6#
- 2.Qe5#
- 1...Qe1
- 2.Sf6#
- 2.Qe5#
- 1...Qf1
- 2.Sf6#
- 2.Qe5#
- 1...Rf1
- 2.Sf6#
- 2.Qe5#
- 1...Sg6
- 2.Sf2#
- 2.Sf6#
- 2.gxf3#
- 1...Sc4
- 2.Sf2#
- 2.Sf6#
- 2.Bc6#
- 1...Sc6
- 2.Sf2#
- 2.Sf6#
- 2.Bxc6#
- 1...f2
- 2.Sxf2#
- 2.Sf6#
- 2.Qe5#
- 1...Bxg4!
- threat
- 1.Sec6?
- threat
- 2.Qe5#
- 1...Sxc6
- 2.Bxc6#
- 1...Sg6
- 2.gxf3#
- 1...g4
- 2.Rf4#
- 1...Sc4!
- threat
- 1.Sg6?
- threat
- 2.Qe5#
- 1...Sxg6
- 2.gxf3#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...g4
- 2.Rf4#
- 1...hxg6!
- threat
- 1.Sd7?
- threat
- 2.Sc5#
- 2.Sf6#
- 2.Qe5#
- 1...Sg6
- 2.Sc5#
- 2.Sf6#
- 2.gxf3#
- 1...Sb3
- 2.Sf6#
- 2.Qe5#
- 1...Sc4
- 2.Sc5#
- 2.Sf6#
- 1...Sc6
- 2.Sc5#
- 2.Sf6#
- 1...Sb7
- 2.Sf6#
- 2.Qe5#
- 1...g4
- 2.Sf6#
- 2.Rf4#
- 1...Bxd7!
- threat
- 1.Sf7?
- threat
- 2.Qe5#
- 1...Sg6
- 2.gxf3#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...g4!
- threat
- 1.Sc2?
- Keys
- 1.g8S!
- threat
- 2.Sf6#
- threat
- 1.g8S!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 7
- Sets
- S(g);N_GUARD::P(B),XP(d)
- S(h);N_GUARD::B(I)
- S(h);N_GUARD::B(I),XS(h)
- P(j);N_GUARD::R1(J)
- Tries
- Try
- S(D);
- Threat
- QAR1(F)
- Vars
- P(c);OGATE,XS(D)::R1(C)
- S(g);N_GUARD::P(B),XP(d)
- S(h);N_GUARD::B(I)
- S(h);N_GUARD::B(I),XS(h)
- Refutation
- Q(a);P_PINR(C),XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(B)::QAR1(F)
- P(c);OGATE,XS(D)::R1(C)
- Q(a);::QAR1(F)
- S(g);N_GUARD::P(B),XP(d)
- Refutation
- P(d);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD,XS(D)::B(I)
- Refutation
- Q(a);XS(D)
- Try
- S(D);XP(d)
- Threat
- QAR1(F)
- Vars
- S(g);OGATE,XS(D)::P(B),XS(g)
- Refutation
- S(g);
- Try
- S(D);XP(i)
- Threat
- QAR1(F)
- Vars
- S(g);N_GUARD::P(B),XP(d)
- S(h);N_GUARD::B(I)
- S(h);N_GUARD::B(I),XS(h)
- Refutation
- P(l);XS(D)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(b);XP(B)::QAR1(F)
- S(g);N_GUARD,XS(D)::P(B),XP(d)
- Q(a);::QAR1(F)
- Refutation
- B(o);XS(D)
- Try
- S(D);
- Threat
- QAR1(F)
- Vars
- S(h);OGATE,XS(D)::B(I),XS(h)
- S(g);N_GUARD::P(B),XP(d)
- Refutation
- S(h);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD::B(I)
- Refutation
- B(o);XS(D)
- Try
- S(E);XP(c)
- Threat
- DUALS(3)
- Refutation
- Q(a);XS(E)
- Try
- S(E);XP(d)
- Threat
- QAR1(F)
- Vars
- S(g);OGATE,XS(E)::P(B),XS(g)
- P(j);N_GUARD::R1(J)
- Refutation
- S(g);
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- S(h);N_GUARD,XS(E)::B(I)
- S(g);N_GUARD::P(B),XP(d)
- S(h);N_GUARD::B(I),XS(h)
- P(j);N_GUARD::R1(J)
- Refutation
- P(i);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Refutation
- B(o);XS(E)
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- S(h);OGATE,XS(E)::B(I),XS(h)
- S(g);N_GUARD::P(B),XP(d)
- P(j);N_GUARD::R1(J)
- Refutation
- S(h);
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- S(g);N_GUARD,XS(E)::P(B),XP(d)
- S(h);N_GUARD::B(I)
- S(h);N_GUARD::B(I),XS(h)
- P(j);N_GUARD::R1(J)
- Refutation
- P(n);XS(E)
- Try
- S(E);
- Threat
- DUALS(3)
- Refutation
- B(o);XS(E)
- Try
- S(E);
- Threat
- QAR1(F)
- Vars
- S(g);N_GUARD::P(B),XP(d)
- S(h);N_GUARD::B(I)
- S(h);N_GUARD::B(I),XS(h)
- Refutation
- P(j);
- Try
- Actual
- P(H);
- Threat
- S(H)
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