MESON Chess Problem Database
Problem Display
PID: 200377 (5N2/5p1B/1p6/1Rb4K/p2P1k2/P7/3PRnPP/3n4 w - - 0 1)
de Jong, Leonard Nicholaas
Op de Hoogte, 1915
#2
10 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxa3
- 2.Rf5#
- 1...Bb4
- 2.Rf5#
- 1...Bxd4
- 2.Rf5#
- 1...Bd6
- 2.Rf5#
- 1...Be7
- 2.Rf5#
- 1...Bxf8
- 2.Rf5#
- 1...Sb2
- 2.Rxf2#
- 1...Sc3
- 2.Rxf2#
- 1...Se3
- 2.Rxf2#
- 2.dxe3#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...f5
- 2.Se6#
- 2.Sg6#
- 1...f6
- 2.Se6#
- 1...Bxa3
- Tries
- 1.Kh4?
- 1...Bxa3
- 2.Rf5#
- 1...Bxd4
- 2.Rf5#
- 1...Bxf8
- 2.Rf5#
- 1...Bb4
- 2.Rf5#
- 1...Bd6
- 2.Rf5#
- 1...Sb2
- 2.Rxf2#
- 1...Sc3
- 2.Rxf2#
- 1...Se3
- 2.Rxf2#
- 2.dxe3#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...f5
- 2.Se6#
- 2.Sg6#
- 1...f6
- 2.Se6#
- 1...Be7+!
- 1...Bxa3
- 1.Bg6?
- 1...Bxa3
- 2.Rf5#
- 1...Bxd4
- 2.Rf5#
- 1...Bxf8
- 2.Rf5#
- 1...Bb4
- 2.Rf5#
- 1...Bd6
- 2.Rf5#
- 1...Be7
- 2.Rf5#
- 1...Sb2
- 2.Rxf2#
- 1...Sc3
- 2.Rxf2#
- 1...Se3
- 2.Rxf2#
- 2.dxe3#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...f5
- 2.Se6#
- 1...f6
- 2.Se6#
- 1...fxg6+!
- 1...Bxa3
- 1.Re3?
- threat
- 2.Rf3#
- 2.g3#
- 1...Sh1
- 2.Rf3#
- 2.Re4#
- 1...Se4
- 2.Rf3#
- 2.Rxe4#
- 1...f5
- 2.Se6#
- 2.Sg6#
- 2.g3#
- 1...Sxe3!
- threat
- 1.Re7?
- threat
- 2.Rxf7#
- 1...Bxd4
- 2.Rf5#
- 1...Se3
- 2.dxe3#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Se6#
- 1...Bxe7!
- threat
- 1.Rb3?
- threat
- 2.Rf3#
- 2.g3#
- 1...Sc3
- 2.Rxf2#
- 1...Se3
- 2.Rxf2#
- 2.dxe3#
- 1...Sh1
- 2.Re4#
- 2.Rf3#
- 1...Sd3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 2.Rf3#
- 1...axb3!
- threat
- 1.Rxc5?
- threat
- 2.Rf5#
- 1...Se3
- 2.Rxf2#
- 2.dxe3#
- 1...f5
- 2.Se6#
- 2.Sg6#
- 2.Rxf5#
- 1...bxc5!
- threat
- 1.Kh4?
- Keys
- 1.Re6!
- threat
- 2.Rf6#
- 1...Bxd4
- 2.Rf5#
- 1...fxe6
- 2.Sxe6#
- 1...Be7
- 2.Rf5#
- 1...Se3
- 2.dxe3#
- 1...Se4
- 2.Rxe4#
- 1...Sg4
- 2.Re4#
- 1...f5
- 2.Sg6#
- 1...f6
- 2.Rxf6#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 9
- Sets
- B(e);OGATE,XP(E)::R1(G)
- B(e);OGATE::R1(G)
- B(e);OGATE,XP(F)::R1(G)
- B(e);OGATE,XS(J)::R1(G)
- S(a);N_GUARD::R(B),XS(b)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- P(g);N_GUARD::S(J)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(e);OGATE,XP(E)::R1(G)
- B(e);OGATE,XP(F)::R1(G)
- B(e);OGATE,XS(J)::R1(G)
- B(e);OGATE::R1(G)
- S(a);N_GUARD::R(B),XS(b)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- P(g);N_GUARD::S(J)
- Refutation
- B(e);CHECK
- Try
- B(I);
- Vars
- B(e);OGATE,XP(E)::R1(G)
- B(e);OGATE,XP(F)::R1(G)
- B(e);OGATE,XS(J)::R1(G)
- B(e);OGATE::R1(G)
- S(a);N_GUARD::R(B),XS(b)
- S(b);N_GUARD::R1(B)
- S(b);N_GUARD::R1(B),XS(b)
- P(g);N_GUARD::S(J)
- Refutation
- P(g);CHECK,XB(I)
- Try
- R(B);
- Threat
- DUALS(2)
- Refutation
- S(a);XR(B)
- Try
- R(B);
- Threat
- R(B),XP(g)
- Vars
- B(e);OGATE,XP(F)::R1(G)
- S(a);OGATE::P(A),XS(a)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::R1(B)
- P(g);N_GUARD,SBLOCK::S(J)
- P(g);N_GUARD::S(J)
- Refutation
- B(e);XR(B)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::R(B),XS(b)
- S(b);N_GUARD::R1(B)
- Refutation
- P(c);XR(G)
- Try
- R(G);XB(e)
- Threat
- R1(G)
- Refutation
- P(f);XR(G)
- Try
- Actual
- R(B);
- Threat
- R(B)
- Vars
- B(e);OGATE,XP(F)::R1(G)
- P(g);XR(B)::S(J),XP(g)
- B(e);OGATE::R1(G)
- S(a);OGATE::P(A),XS(a)
- S(b);N_GUARD::R1(B),XS(b)
- S(b);N_GUARD::R1(B)
- P(g);N_GUARD,SBLOCK::S(J)
- P(g);::R(B),XP(g)
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