MESON Chess Problem Database
Problem Display
PID: 225722 (4NBR1/5k1P/3pR1n1/prbP4/Bp6/1K6/8/8 w - - 0 1)
Pribyl, Vaclav
2nd Comm., Praca, 1957
#2
8 + 7
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb6
- 2.Rf6#
- 1...Rb7
- 2.Rf6#
- 1...Rb8
- 2.Rf6#
- 1...Bg1
- 2.Sxd6#
- 1...Bf2
- 2.Sxd6#
- 1...Be3
- 2.Sxd6#
- 1...Bd4
- 2.Sxd6#
- 1...Bb6
- 2.Sxd6#
- 1...Ba7
- 2.Sxd6#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Re7#
- 1...Se7
- 2.Rxe7#
- 1...Sxf8
- 2.Rg7#
- 1...Sh8
- 2.Re7#
- 1...Rb6
- Tries
- 1.Ka2?
- 1...Sxf8
- 2.Rg7#
- 1...Se7
- 2.Rxe7#
- 1...Rb6
- 2.Rf6#
- 1...Rb7
- 2.Rf6#
- 1...Rb8
- 2.Rf6#
- 1...Bg1
- 2.Sxd6#
- 1...Bf2
- 2.Sxd6#
- 1...Be3
- 2.Sxd6#
- 1...Bd4
- 2.Sxd6#
- 1...Bb6
- 2.Sxd6#
- 1...Ba7
- 2.Sxd6#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Re7#
- 1...Sh8
- 2.Re7#
- 1...b3+!
- 1...Sxf8
- 1.Kc2?
- 1...Sxf8
- 2.Rg7#
- 1...Se7
- 2.Rxe7#
- 1...Rb6
- 2.Rf6#
- 1...Rb7
- 2.Rf6#
- 1...Rb8
- 2.Rf6#
- 1...Bg1
- 2.Sxd6#
- 1...Bf2
- 2.Sxd6#
- 1...Be3
- 2.Sxd6#
- 1...Bd4
- 2.Sxd6#
- 1...Bb6
- 2.Sxd6#
- 1...Ba7
- 2.Sxd6#
- 1...Sf4
- 2.Re7#
- 1...Sh4
- 2.Re7#
- 1...Se5
- 2.Re7#
- 1...Sh8
- 2.Re7#
- 1...b3+!
- 1...Sxf8
- 1.Bxb5?
- threat
- 2.Rf6#
- 1...Sxf8
- 2.Rg7#
- 1...Bd4
- 2.Sxd6#
- 1...a4+!
- threat
- 1.Bxd6?
- threat
- 2.Rf6#
- 2.Rg7#
- 1...Bxd6
- 2.Sxd6#
- 1...Se7
- 2.Rf6#
- 2.Rxe7#
- 1...Sf8
- 2.Re7#
- 2.Rg7#
- 2.Rxf8#
- 1...Bd4!
- threat
- 1.Rexg6?
- 1...Rb8
- 2.Rf6#
- 2.R6g7#
- 2.h8S#
- 1...Rb6
- 2.Rf6#
- 2.R6g7#
- 2.h8S#
- 1...Rb7
- 2.Rf6#
- 2.R6g7#
- 2.h8S#
- 1...Bg1
- 2.Sxd6#
- 1...Bf2
- 2.Sxd6#
- 1...Be3
- 2.Sxd6#
- 1...Bd4
- 2.Sxd6#
- 1...Bb6
- 2.Sxd6#
- 1...Ba7
- 2.Sxd6#
- 1...Kxe8!
- 1...Rb8
- 1.Rgxg6?
- threat
- 2.Rgf6#
- 1...Kxf8
- 2.Rgf6#
- 1...Bd4!
- threat
- 1.h8Q?
- threat
- 2.Rg7#
- 2.Qg7#
- 2.Qh7#
- 1...Sxf8
- 2.Rg7#
- 2.Rxf8#
- 2.Qg7#
- 1...Se7
- 2.Rxe7#
- 1...Bd4
- 2.Sxd6#
- 1...Sxh8!
- threat
- 1.h8R?
- threat
- 2.Rg7#
- 1...Se7
- 2.Rxe7#
- 1...Bd4
- 2.Sxd6#
- 1...Sxh8!
- threat
- 1.Ka2?
- Keys
- 1.Be7!
- 1...Sxe7
- 2.Rf6#
- 1...Sf8
- 2.Rxf8#
- 1...Rb8
- 2.Rg7#
- 1...Rb6
- 2.Rg7#
- 1...Rb7
- 2.Rg7#
- 1...Bg1
- 2.Sxd6#
- 1...Bf2
- 2.Sxd6#
- 1...Be3
- 2.Sxd6#
- 1...Bd4
- 2.Sxd6#
- 1...Bb6
- 2.Sxd6#
- 1...Ba7
- 2.Sxd6#
- 1...Sf4
- 2.Rf8#
- 1...Sh4
- 2.Rf8#
- 1...Se5
- 2.Rf8#
- 1...Sh8
- 2.Rf8#
- 1...Sxe7
- 1.Be7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(c);::R1(D)
- B(d);N_GUARD::S(F),XP(e)
- S(f);N_GUARD::R1(D)
- S(f);N_GUARD::R1(D),XS(f)
- S(f);SBLOCK,XB(G)::R1(H)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- S(f);SBLOCK,XB(G)::R1(H)
- S(f);N_GUARD::R1(D),XS(f)
- R(c);::R1(D)
- B(d);N_GUARD::S(F),XP(e)
- S(f);N_GUARD::R1(D)
- Refutation
- P(a);CHECK
- Try
- K(A);S_FLIGHT
- Vars
- S(f);SBLOCK,XB(G)::R1(H)
- S(f);N_GUARD::R1(D),XS(f)
- R(c);::R1(D)
- B(d);N_GUARD::S(F),XP(e)
- S(f);N_GUARD::R1(D)
- Refutation
- P(a);CHECK
- Try
- B(B);XR(c)
- Threat
- R1(D)
- Vars
- S(f);SBLOCK,XB(G)::R1(H)
- B(d);N_GUARD::S(F),XP(e)
- Refutation
- P(b);CHECK
- Try
- B(G);XP(e)
- Threat
- DUALS(2)
- Vars
- B(d);XB(G)::S(F),XB(d)
- Refutation
- B(d);
- Try
- R(D);XS(f)
- Vars
- B(d);N_GUARD::S(F),XP(e)
- Refutation
- K(g);P_SPINR(c),S_FLIGHT,XS(F)
- Try
- R(H);XS(f)
- Threat
- R1(H)
- Vars
- K(g);P-FLIGHT,XB(G)::R(H)
- Refutation
- B(d);
- Try
- P(E);
- Threat
- DUALS(3)
- Vars
- S(f);N_GUARD::R1(D),XS(f)
- B(d);N_GUARD::S(F),XP(e)
- Refutation
- S(f);XQ(E)
- Try
- P(E);
- Threat
- R1(H)
- Vars
- S(f);N_GUARD::R1(D),XS(f)
- B(d);N_GUARD::S(F),XP(e)
- Refutation
- S(f);XR(E)
- Try
- Actual
- B(G);
- Vars
- S(f);SBLOCK,XB(G)::R1(D)
- S(f);N_GUARD::R1(H),XS(f)
- R(c);::R1(H)
- B(d);N_GUARD::S(F),XP(e)
- S(f);N_GUARD::R1(H)
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