MESON Chess Problem Database
Problem Display
PID: 168454 (1K3b2/Nb1R1r2/1k1pp3/1P4p1/1PP1N1pq/4R3/r4B2/7Q w - - 0 1)
Petite, Efren
8th Comm., Arguelles-80 JT, 1983
#2
10 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Rxb7#
- 1...Rf3
- 2.Rxb7#
- 1...Rf4
- 2.Rxb7#
- 1...Rf5
- 2.Rxb7#
- 1...Rf6
- 2.Rxb7#
- 1...Bxe4
- 2.Sc8#
- 1...Bd5
- 2.Sc8#
- 1...Bc6
- 2.Sc8#
- 1...Ba8
- 2.Sc8#
- 1...Bc8
- 2.Sxc8#
- 1...Be7
- 2.Rxb7#
- 1...Rxf2
- Tries
- 1.Sd2?
- threat
- 2.Qxb7#
- 1...Qxh1
- 2.Rf3#
- 1...Rxd7
- 2.Rg3#
- 1...Bxh1
- 2.Sc8#
- 1...Rf3
- 2.Rxb7#
- 1...Bg2
- 2.Sc8#
- 1...Bf3
- 2.Sc8#
- 1...Be4
- 2.Sc8#
- 1...Bd5
- 2.Sc8#
- 1...Ba6
- 2.Qc6#
- 1...Bc6
- 2.Sc8#
- 2.Qxc6#
- 1...Ba8
- 2.Sc8#
- 1...Bc8
- 2.Sxc8#
- 2.Qc6#
- 1...d5
- 2.Rxe6#
- 1...Rxa7!
- threat
- 1.Sg3?
- threat
- 2.Qxb7#
- 1...Rxa7
- 2.Rf3#
- 1...Rxd7
- 2.Re2#
- 1...Bxh1
- 2.Sc8#
- 1...Rf3
- 2.Rxb7#
- 1...Bg2
- 2.Sc8#
- 1...Bf3
- 2.Sc8#
- 2.Re2#
- 1...Be4
- 2.Sc8#
- 1...Bd5
- 2.Sc8#
- 1...Ba6
- 2.Qc6#
- 1...Bc6
- 2.Sc8#
- 2.Qxc6#
- 1...Ba8
- 2.Sc8#
- 1...Bc8
- 2.Sxc8#
- 2.Qc6#
- 1...d5
- 2.Rxe6#
- 1...Qxh1!
- threat
- 1.Sxd6?
- threat
- 2.Qxb7#
- 2.c5#
- 1...Qxh1
- 2.c5#
- 1...Rxa7
- 2.c5#
- 1...Rxd7
- 2.c5#
- 1...Bxh1
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Rc2
- 2.Qxb7#
- 1...Rf3
- 2.Rxb7#
- 2.c5#
- 1...Rf5
- 2.Rxb7#
- 2.Qxb7#
- 1...Bg2
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Bf3
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Be4
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Bd5
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Ba6
- 2.Qc6#
- 2.c5#
- 1...Bc6
- 2.Sdc8#
- 2.Sac8#
- 2.Qxc6#
- 2.c5#
- 1...Ba8
- 2.Sdc8#
- 2.Sac8#
- 2.c5#
- 1...Bc8
- 2.Sdxc8#
- 2.Saxc8#
- 2.Qc6#
- 2.c5#
- 1...Bxd6+!
- threat
- 1.Re2+?
- 1...Rxf2
- 2.Rxb7#
- 1...Qxf2!
- 1...Rxf2
- 1.Rg3+?
- 1...Rfxf2
- 2.Rxb7#
- 1...Raxf2!
- 1...Rfxf2
- 1.Rxd6+?
- 1...Bc6
- 2.Sc8#
- 2.Rxc6#
- 2.c5#
- 1...Bxd6+!
- 1...Bc6
- 1.Sd2?
- Keys
- 1.Sf6!
- threat
- 2.Qxb7#
- 1...Qxh1
- 2.Re2#
- 1...Rxa7
- 2.Rg3#
- 1...Rxd7
- 2.Sxd7#
- 1...Bxh1
- 2.Sc8#
- 1...Bg2
- 2.Sc8#
- 1...Bf3
- 2.Sc8#
- 1...Be4
- 2.Sc8#
- 1...Bd5
- 2.Sc8#
- 1...Ba6
- 2.Qc6#
- 1...Bc6
- 2.Sc8#
- 2.Qxc6#
- 1...Ba8
- 2.Sc8#
- 1...Bc8
- 2.Sxc8#
- 2.Qc6#
- 1...d5
- 2.Rxe6#
- threat
- 1.Sf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 8
- Sets
- R(i);N_GUARD,XB(B)::R1(I),XB(h)
- R(i);N_GUARD::R1(I),XB(h)
- B(h);N_GUARD,XS(F)::S(H)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::S(H),XB(h)
- B(j);S_CUTR(i)::R1(I),XB(h)
- Tries
- Try
- S(F);
- Threat
- QAR1(A),XB(h)
- Vars
- Q(c);N_GUARD,XQ(A)::B(B)+R(C)
- R(i);N_GUARD,XR(I)::B(B)+R(C)
- B(h);N_GUARD,XQ(A)::S(H)
- R(i);N_GUARD::R1(I),XB(h)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::QAR1(A)
- P(f);::B(B)+R(C),DCHECK,XP(g)
- Refutation
- R(a);XS(H)
- Try
- S(F);
- Threat
- QAR1(A),XB(h)
- Vars
- R(a);N_GUARD,XS(H)::B(B)+R(C)
- R(i);N_GUARD,XR(I)::B(B)+R(C)
- B(h);N_GUARD,XQ(A)::S(H)
- R(i);N_GUARD::R1(I),XB(h)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::QAR1(A)
- P(f);::B(B)+R(C),DCHECK,XP(g)
- Refutation
- Q(c);XQ(A)
- Try
- S(F);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(c);XQ(A)::P(E)
- R(a);XS(H)::P(E)
- R(i);XR(I)::P(E)
- R(a);::QAR1(A),XB(h)
- Refutation
- B(j);CHECK,XS(F)
- Try
- R(C);CHECK
- Vars
- R(i);XB(B)::R1(I),XB(h)
- Refutation
- Q(c);XB(B)
- Try
- R(C);CHECK
- Vars
- R(i);XB(B)::R1(I),XB(h)
- Refutation
- R(a);XB(B)
- Try
- R(I);CHECK,XP(f)
- Refutation
- B(j);CHECK,XR(I)
- Try
- Actual
- S(F);
- Threat
- QAR1(A),XB(h)
- Vars
- Q(c);N_GUARD,XQ(A)::B(B)+R(C)
- R(a);N_GUARD,XS(H)::B(B)+R(C)
- R(i);XR(I)::S(F),XR(i)
- B(h);N_GUARD,XQ(A)::S(H)
- B(h);N_GUARD::S(H)
- B(h);N_GUARD::QAR1(A)
- P(f);::B(B)+R(C),DCHECK,XP(g)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).