MESON Chess Problem Database
Problem Display
PID: 147120 (3b4/PK1R1n1r/3pP3/pRpkB1p1/N1N3Qp/1n2PP2/8/1r2q3 w - - 0 1)
Petite, Efren
Australian Chess Problem Magazine, 1997
#2
11 + 12
SOLUTION
- SOUND
- Sets
- 1...Qf2
- 2.Sc3#
- 1...Qc3
- 2.Sxc3#
- 1...Qg3
- 2.Sc3#
- 1...Qd1
- 2.Sc3#
- 1...Qf1
- 2.Sc3#
- 1...Qg1
- 2.Sc3#
- 1...Qh1
- 2.Sc3#
- 1...Qe2
- 2.Sc3#
- 1...Bb6
- 2.Saxb6#
- 1...Bf6
- 2.Sab6#
- 1...Be7
- 2.Sab6#
- 1...Sd2
- 2.Sc3#
- 1...Qf2
- Tries
- 1.Kc8?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Qxe3
- 2.a8Q#
- 2.a8B#
- 1...Sxe5
- 2.Rxd6#
- 1...Sd4
- 2.Rxc5#
- 1...Qd2
- 2.a8Q#
- 2.a8B#
- 1...Qf2
- 2.a8Q#
- 2.a8B#
- 1...Qc3
- 2.a8Q#
- 2.a8B#
- 1...Qg3
- 2.a8Q#
- 2.a8B#
- 1...Qb4
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- 2.a8Q#
- 2.a8B#
- 1...Qd1
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.a8Q#
- 2.a8B#
- 1...Qg1
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.a8Q#
- 2.a8B#
- 1...Qe2
- 2.a8Q#
- 2.a8B#
- 1...Ra1
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.a8Q#
- 2.a8B#
- 1...Rd1
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.a8Q#
- 2.a8B#
- 1...Bb6
- 2.a8Q#
- 2.a8B#
- 1...Bf6
- 2.a8Q#
- 2.a8B#
- 1...Bc7
- 2.a8Q#
- 2.a8B#
- 1...Be7
- 2.a8Q#
- 2.a8B#
- 1...Sa1
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sd2
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sh6
- 2.Rxd6#
- 2.a8Q#
- 2.a8B#
- 1...Sh8
- 2.Rxd6#
- 2.a8Q#
- 2.a8B#
- 1...h3
- 2.a8Q#
- 2.a8B#
- 1...Kc6!
- threat
- 1.Bb2?
- threat
- 2.Qe4#
- 1...Qxe3
- 2.Sxe3#
- 1...Sd4
- 2.Rxc5#
- 1...Sd2
- 2.Sc3#
- 2.Rxc5#
- 1...Se5!
- threat
- 1.Bg7?
- threat
- 2.Qe4#
- 1...Qxe3
- 2.Sxe3#
- 1...Se5
- 2.Rxd6#
- 1...Sd2
- 2.Sc3#
- 1...Sd4!
- threat
- 1.Re7?
- threat
- 2.Qe4#
- 1...Bxe7
- 2.Sab6#
- 1...Sd4
- 2.Qxd4#
- 1...Sd2
- 2.Sc3#
- 2.Qd4#
- 1...Qxe3!
- threat
- 1.Kc8?
- Keys
- 1.Ka6!
- threat
- 2.a8Q#
- 2.a8B#
- 1...Kc6
- 2.a8Q#
- 2.a8B#
- 1...Qxe3
- 2.a8Q#
- 2.a8B#
- 1...Sxe5
- 2.Rxd6#
- 1...Sd4
- 2.Rxc5#
- 1...Qd2
- 2.a8Q#
- 2.a8B#
- 1...Qf2
- 2.a8Q#
- 2.a8B#
- 1...Qc3
- 2.a8Q#
- 2.a8B#
- 1...Qg3
- 2.a8Q#
- 2.a8B#
- 1...Qb4
- 2.a8Q#
- 2.a8B#
- 1...Qc1
- 2.a8Q#
- 2.a8B#
- 1...Qd1
- 2.a8Q#
- 2.a8B#
- 1...Qf1
- 2.a8Q#
- 2.a8B#
- 1...Qg1
- 2.a8Q#
- 2.a8B#
- 1...Qh1
- 2.a8Q#
- 2.a8B#
- 1...Qe2
- 2.a8Q#
- 2.a8B#
- 1...Ra1
- 2.a8Q#
- 2.a8B#
- 1...Rc1
- 2.a8Q#
- 2.a8B#
- 1...Rd1
- 2.a8Q#
- 2.a8B#
- 1...Rb2
- 2.a8Q#
- 2.a8B#
- 1...Rh5
- 2.a8Q#
- 2.a8B#
- 1...Rh6
- 2.a8Q#
- 2.a8B#
- 1...Rg7
- 2.a8Q#
- 2.a8B#
- 1...Rh8
- 2.a8Q#
- 2.a8B#
- 1...Bb6
- 2.a8Q#
- 2.a8B#
- 1...Bf6
- 2.a8Q#
- 2.a8B#
- 1...Bc7
- 2.a8Q#
- 2.a8B#
- 1...Be7
- 2.a8Q#
- 2.a8B#
- 1...Sa1
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sc1
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sd2
- 2.Rxc5#
- 2.a8Q#
- 2.a8B#
- 1...Sh6
- 2.Rxd6#
- 2.a8Q#
- 2.a8B#
- 1...Sh8
- 2.Rxd6#
- 2.a8Q#
- 2.a8B#
- 1...h3
- 2.a8Q#
- 2.a8B#
- threat
- 1.Ka6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 12
- Sets
- Q(b);N_GUARD::S(C)
- Q(b);N_GUARD::S(C),XQ(b)
- B(l);N_GUARD::S(C),XB(l)
- B(l);N_GUARD::S(C)
- S(c);P_PINR(F),S_CUTQ(b)::S(C)
- Tries
- Try
- K(J);S_FLIGHT
- Threat
- P=Q
- Vars
- Q(b);XP(A)::P=Q
- S(j);N_GUARD,XB(G)::R1(K),XP(i)
- S(c);N_GUARD::R1(F),XP(f)
- Q(b);::P=Q
- R(a);::P=Q
- R(k);::P=Q
- B(l);::P=Q
- P(d);::P=Q
- Refutation
- K(g);N_SPINP(f),S_FLIGHT
- Try
- B(G);
- Threat
- QAB1(E)
- Vars
- Q(b);XP(A)::S(D),XQ(b)
- S(c);N_GUARD::R1(F),XP(f)
- Refutation
- S(j);P_PINR(K)
- Try
- B(G);
- Threat
- QAB1(E)
- Vars
- Q(b);XP(A)::S(D),XQ(b)
- S(j);N_GUARD::R1(K),XP(i)
- S(c);P_PINR(F),S_CUTQ(b)::S(C)
- Refutation
- S(c);P_PINR(F)
- Try
- R(K);
- Threat
- QAB1(E)
- Vars
- B(l);N_GUARD,XR(K)::S(C)
- S(c);N_GUARD,P_PINR(F)::QAR1(E),XS(c)
- Refutation
- Q(b);XP(A)
- Try
- Actual
- K(J);S_FLIGHT
- Threat
- P=Q
- Vars
- K(g);N_SPINP(f),S_FLIGHT::P=Q
- Q(b);XP(A)::P=Q
- S(j);N_GUARD,XB(G)::R1(K),XP(i)
- S(c);N_GUARD::R1(F),XP(f)
- Q(b);::P=Q
- R(a);::P=Q
- R(k);::P=Q
- B(l);::P=Q
- P(d);::P=Q
Developed and maintained by Brian Stephenson.
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