MESON Chess Problem Database
Problem Display
PID: 48316 (8/1p3p2/1p2R3/1p5n/bNkP2Q1/KNp2r1r/PnR4q/B6B w - - 0 1)
Petite, Efren
3rd Comm., BCF 141. Ty., 1978-1979
#2
10 + 12
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 1...Qd6
- 2.Sd2#
- 1...Qc7
- 2.Sd2#
- 1...Qb8
- 2.Sd2#
- 1...Qxh1
- 2.Sd2#
- 1...Qd2
- 2.Sxd2#
- 1...Rf1
- 2.Bd5#
- 1...Rf2
- 2.Bd5#
- 1...Rd3
- 2.Bd5#
- 1...Re3
- 2.Bd5#
- 1...Rfg3
- 2.Bd5#
- 1...Rf4
- 2.Bd5#
- 1...Rf6
- 2.Bd5#
- 1...Bxb3
- 2.axb3#
- 1...Sd3
- 2.Rxc3#
- 1...fxe6
- 2.Qxe6#
- 1...Qg1
- Tries
- 1.Rxc3+?
- 1...Rxc3
- 2.Bd5#
- 1...Kxc3!
- 1...Rxc3
- 1.Ree2?
- threat
- 2.Sd2#
- 1...Qxe2
- 2.Qc8#
- 1...Bxb3
- 2.axb3#
- 1...Rd3
- 2.Bd5#
- 1...Rf4
- 2.Bd5#
- 2.Qc8#
- 1...Sf4
- 2.Qc8#
- 1...Qf4!
- threat
- 1.Re3?
- threat
- 2.Rcxc3#
- 1...Qxc2
- 2.Qc8#
- 1...Rxe3
- 2.Bd5#
- 1...Qd2
- 2.Sxd2#
- 2.Qc8#
- 1...Sd1!
- threat
- 1.Rxb6?
- threat
- 2.Sa5#
- 1...Bxb3
- 2.axb3#
- 1...Rf4
- 2.Bd5#
- 2.Qc8#
- 1...Sf4
- 2.Qc8#
- 1...Qf4!
- threat
- 1.Rd6?
- threat
- 2.Qc8#
- 1...Qxd6
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 1...Sd3
- 2.Rxc3#
- 1...f5
- 2.Qg8#
- 1...Rf5!
- threat
- 1.Qxf3?
- threat
- 2.Rxc3#
- 2.Qd5#
- 1...Qxh1
- 2.Rxc3#
- 1...Qxc2
- 2.Qd5#
- 1...Bxb3
- 2.Qd5#
- 1...fxe6
- 2.Rxc3#
- 1...Qe5
- 2.Rxc3#
- 1...Qd6
- 2.Rxc3#
- 1...Qd2
- 2.Qd5#
- 1...Qg2
- 2.Rxc3#
- 1...Sd1
- 2.Qd5#
- 1...Sf4
- 2.Rxc3#
- 1...Sf6
- 2.Rxc3#
- 1...Rxf3!
- threat
- 1.Qe4?
- threat
- 2.Qd5#
- 2.d5#
- 1...Qxc2
- 2.Qd5#
- 1...Bxb3
- 2.Qd5#
- 2.axb3#
- 1...fxe6
- 2.Qxe6#
- 2.d5#
- 1...Qf4
- 2.Qd5#
- 1...Qg1
- 2.Sd2#
- 2.Qd5#
- 1...Qe5
- 2.Sd2#
- 2.dxe5#
- 1...Qd6
- 2.Sd2#
- 2.d5#
- 1...Qd2
- 2.Sxd2#
- 2.Qd5#
- 1...Qe2
- 2.Qd5#
- 1...Qf2
- 2.Qd5#
- 1...Rd3
- 2.Qd5#
- 1...Re3
- 2.Qd5#
- 1...Rf4
- 2.Qd5#
- 1...Rf5
- 2.d5#
- 1...Rh4
- 2.Qd5#
- 1...Sg3
- 2.Qd5#
- 1...Sf4
- 2.d5#
- 1...f5
- 2.Qd5#
- 1...Sf6!
- threat
- 1.Rxc3+?
- Keys
- 1.Re5!
- threat
- 2.Qc8#
- 1...Qxe5
- 2.Sd2#
- 1...Bxb3
- 2.axb3#
- 1...Rf5
- 2.Bd5#
- 1...Rf6
- 2.Bd5#
- 1...Sd3
- 2.Rxc3#
- 1...f5
- 2.Qg8#
- threat
- 1.Re5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(b);N_GUARD::S(F)
- Q(b);N_GUARD,P_PINS(G)::S(F)
- Q(b);N_GUARD,XB(B)::S(F)
- Q(b);N_GUARD::S(F),XQ(b)
- R(d);OGATE::B(B)
- B(f);OGATE,XS(F)::P(C),XB(f)
- S(a);S_CUTR(d)::R1(D),XP(c)
- P(l);OGATE,XR(J)::QAB(I),XP(l)
- Tries
- Try
- R(D);CHECK,XP(c)
- Vars
- R(d);OGATE,P_PINS(F),SBLOCK,XR(D)::B(B)
- Refutation
- K(g);P-FLIGHT,P_SPINS(a),XR(D)
- Try
- R(J);
- Threat
- S(F)
- Vars
- Q(b);N_GUARD,XR(J)::QAR(I)
- B(f);OGATE,XS(F)::P(C),XB(f)
- R(d);OGATE::B(B)
- S(i);S_CUTQ(b)::QAR(I)
- Refutation
- Q(b);
- Try
- R(J);
- Threat
- R1(D),XP(c)
- Vars
- Q(b);N_GUARD,N_SPINP(c),XR(D)::QAR(I)
- R(d);OGATE,XR(J)::B(B)
- Refutation
- S(a);
- Try
- R(J);XP(j)
- Threat
- S(F)
- Vars
- B(f);OGATE,XS(F)::P(C),XB(f)
- S(i);S_CUTQ(b)::QAR(I)
- Refutation
- Q(b);
- Try
- R(J);
- Threat
- QAR(I)
- Vars
- Q(b);N_GUARD,P_PINS(G),XR(J)::S(F)
- Q(b);N_GUARD::S(F)
- S(a);S_CUTR(d)::R1(D),XP(c)
- P(l);OGATEB::QAB(I)
- Refutation
- R(d);
- Try
- Q(I);XR(d)
- Threat
- DUALS(2)
- Vars
- Q(b);XB(B)::R1(D),XP(c)
- Q(b);N_SPINP(c),XR(D)::QAB1(I)
- B(f);XS(F)::QAB1(I)
- P(l);XR(J)::R1(D),XP(c)
- Q(b);::R1(D),XP(c)
- Q(b);P_PINS(G)::R1(D),XP(c)
- Q(b);::QAB1(I)
- S(a);::QAB1(I)
- S(i);::R1(D),XP(c)
- Refutation
- R(e);XQ(I)
- Try
- Q(I);
- Threat
- DUALS(2)
- Vars
- Q(b);N_SPINP(c),XR(D)::QAB1(I)
- Q(b);::QAB1(I)
- R(d);::QAB1(I)
- R(d);::QAR(I)+P(H)
- R(e);::QAB1(I)
- S(i);::QAB1(I)
- S(i);::QAR(I)+P(H)
- P(l);::QAB1(I)
- Refutation
- S(i);
- Try
- Actual
- R(J);
- Threat
- QAR(I)
- Vars
- Q(b);N_GUARD,XR(J)::S(F)
- B(f);OGATE,XS(F)::P(C),XB(f)
- R(d);OGATE::B(B)
- S(a);S_CUTR(d)::R1(D),XP(c)
- P(l);OGATEB::QAB(I)
Developed and maintained by Brian Stephenson.
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