MESON Chess Problem Database
Problem Display
PID: 184141 (4R3/8/B1Q5/2N4b/7B/n6p/1n2rq2/N1K1kr1R w - - 0 1)
Leplichey, J
Lunati, G
Bulletin Ouvrier des Echecs, 1955
#2
8 + 8
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Bxg3#
- 1...Rg1
- 2.Rxg1#
- 1...Rxh1
- 2.Qxh1#
- 1...Re3
- 2.Rxf1#
- 1...Re4
- 2.Rxf1#
- 1...Re5
- 2.Rxf1#
- 1...Re6
- 2.Rxf1#
- 1...Re7
- 2.Rxf1#
- 1...Rxe8
- 2.Rxf1#
- 1...Bg6
- 2.Rxe2#
- 1...Bf7
- 2.Rxe2#
- 1...Sd1
- 2.Sd3#
- 1...Sd3+
- 2.Sxd3#
- 1...Sa4
- 2.Sd3#
- 1...Sbc4
- 2.Sd3#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sac4
- 2.Sc2#
- 1...Sb5
- 2.Sc2#
- 1...Qg3
- Tries
- 1.Qg2?
- threat
- 2.Bxf2#
- 2.Rxf1#
- 2.Qxf1#
- 2.Qxf2#
- 1...Sd3+
- 2.Sxd3#
- 1...Qxh4
- 2.Rxf1#
- 2.Qxf1#
- 1...Rxh1
- 2.Bxf2#
- 2.Qxh1#
- 2.Qxf2#
- 1...Bxe8
- 2.Rxf1#
- 2.Qxf1#
- 1...Qg3
- 2.Bxg3#
- 2.Rxf1#
- 2.Qxf1#
- 2.Qxg3#
- 1...Rg1
- 2.Bxf2#
- 2.Rxg1#
- 2.Qxg1#
- 2.Qxf2#
- 1...Sd1
- 2.Sd3#
- 2.Rxf1#
- 2.Qxf1#
- 1...hxg2!
- threat
- 1.Qf3?
- threat
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 2.Qc3#
- 1...Sd3+
- 2.Sxd3#
- 1...Qxh4
- 2.Rxf1#
- 2.Rxe2#
- 2.Qxf1#
- 1...Rxh1
- 2.Qxh1#
- 2.Qxf2#
- 1...Rxe8
- 2.Bxf2#
- 2.Rxf1#
- 2.Qxf2#
- 2.Qc3#
- 1...Bxe8
- 2.Qxe2#
- 1...Rg1
- 2.Rxg1#
- 2.Qxf2#
- 1...Qg3
- 2.Bxg3#
- 2.Rxf1#
- 2.Rxe2#
- 2.Qxf1#
- 2.Qxg3#
- 1...Re3
- 2.Bxf2#
- 2.Rxf1#
- 2.Rxe3#
- 2.Qxf2#
- 1...Re4
- 2.Bxf2#
- 2.Rxf1#
- 2.Rxe4#
- 2.Qxf2#
- 2.Qc3#
- 1...Re5
- 2.Bxf2#
- 2.Rxf1#
- 2.Rxe5#
- 2.Qxf2#
- 2.Qc3#
- 1...Re6
- 2.Bxf2#
- 2.Rxf1#
- 2.Rxe6#
- 2.Qxf2#
- 2.Qc3#
- 1...Re7
- 2.Bxf2#
- 2.Rxf1#
- 2.Rxe7#
- 2.Qxf2#
- 2.Qc3#
- 1...Sd1
- 2.Sd3#
- 2.Rxe2#
- 1...Sa4
- 2.Sd3#
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 1...Sbc4
- 2.Sd3#
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 1...Sb1
- 2.Sc2#
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 1...Sac4
- 2.Sc2#
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 1...Sb5
- 2.Sc2#
- 2.Bxf2#
- 2.Rxe2#
- 2.Qxf2#
- 1...Bxf3!
- threat
- 1.Qf6?
- threat
- 2.Bxf2#
- 2.Qc3#
- 2.Qxf2#
- 1...Sd3+
- 2.Sxd3#
- 1...Qxh4
- 2.Rxf1#
- 2.Qxh4#
- 2.Qxf1#
- 1...Rxh1
- 2.Qxf2#
- 1...Rg1
- 2.Rxg1#
- 2.Qxf2#
- 1...Bf3
- 2.Qc3#
- 1...Qg3
- 2.Bxg3#
- 2.Rxf1#
- 2.Qxf1#
- 1...Re5
- 2.Bxf2#
- 2.Rxf1#
- 2.Qxf2#
- 1...Sd1
- 2.Sd3#
- 1...Sa4
- 2.Sd3#
- 2.Bxf2#
- 2.Qxf2#
- 1...Sbc4
- 2.Sd3#
- 2.Bxf2#
- 2.Qxf2#
- 1...Sb1
- 2.Sc2#
- 2.Bxf2#
- 2.Qxf2#
- 1...Sac4
- 2.Sc2#
- 2.Bxf2#
- 2.Qxf2#
- 1...Sb5
- 2.Sc2#
- 2.Bxf2#
- 2.Qxf2#
- 1...Bxe8!
- threat
- 1.Qg2?
- Keys
- 1.Qe4!
- threat
- 2.Qb4#
- 1...Sd3+
- 2.Sxd3#
- 1...Qxh4
- 2.Qxh4#
- 1...Rxh1
- 2.Qxh1#
- 1...Rxe4
- 2.Rxf1#
- 1...Bxe8
- 2.Qxe2#
- 1...Qg3
- 2.Bxg3#
- 1...Rg1
- 2.Rxg1#
- 1...Sd1
- 2.Sd3#
- 1...Sa4
- 2.Sd3#
- 1...Sbc4
- 2.Sd3#
- 1...Sb1
- 2.Sc2#
- 1...Sc2
- 2.Sxc2#
- 1...Sac4
- 2.Sc2#
- 1...Sb5
- 2.Sc2#
- threat
- 1.Qe4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- Q(e);OGATEB::B(D),XQ(e)
- R(b);OGATEB::R(C),XR(b)
- R(b);N_SPINR(b),OGATE,P_SPINR(d),XR(C)::QAR(G),XR(b)
- R(d);::R1(C),XR(b)
- R(d);XR(H)::R1(C),XR(b)
- B(h);N_GUARD::R1(H),XR(d)
- S(c);N_GUARD::S(E)
- S(c);CHECK,N_GUARD::S(E),XS(c)
- S(f);N_GUARD::S(A)
- S(f);N_GUARD::S(A),XS(f)
- Tries
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- S(c);CHECK,N_GUARD::S(E),XS(c)
- Refutation
- P(g);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(4)
- Vars
- S(c);CHECK,N_GUARD::S(E),XS(c)
- B(h);N_GUARD,XR(H)::QAR1(G),XR(d)
- Refutation
- B(h);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- S(c);CHECK,N_GUARD::S(E),XS(c)
- R(b);N_SPINR(b),P_SPINR(d),XR(C)::QAB1(G),XQ(e)
- B(h);::QAB(G)
- S(c);N_GUARD::S(E)
- Refutation
- B(h);XR(H)
- Try
- Actual
- Q(G);
- Threat
- QAB(G)
- Vars
- S(c);CHECK,N_GUARD::S(E),XS(c)
- Q(e);N_SPINQ(e),OGATE,XB(D)::QAB(G),XQ(e)
- R(b);N_SPINR(b),OGATE,P_SPINR(d),XR(C)::QAR(G),XR(b)
- R(d);XQ(G)::R1(C),XR(b)
- B(h);N_GUARD,XR(H)::QAR1(G),XR(d)
- Q(e);OGATEB::B(D),XQ(e)
- R(b);OGATEB::R(C),XR(b)
- S(c);N_GUARD::S(E)
- S(f);N_GUARD::S(A)
- S(f);N_GUARD::S(A),XS(f)
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