MESON Chess Problem Database
Problem Display
PID: 18597 (8/7p/p2N3Q/B1p1pp2/1pPkPp2/2R4R/6pK/5bN1 w - - 0 1)
Retter, Yosef
3rd Prize, BCF, 1957-1958
#2
9 + 10
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...Bxc4
- 2.Rxc4#
- 1...bxc3
- 2.Bxc3#
- 1...b3
- 2.Sf3#
- 1...f3
- 2.Qe3#
- 1...fxe4
- 2.Sf5#
- 1...Be2
- Tries
- 1.Sb5+?
- 1...Kxe4
- 2.Qc6#
- 1...axb5!
- 1...Kxe4
- 1.Bxb4?
- threat
- 2.Sf3#
- 1...fxe4
- 2.Sf5#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...f3
- 2.Sxf3#
- 2.Qe3#
- 1...cxb4!
- threat
- 1.Ra3?
- threat
- 2.Sf3#
- 1...bxa3
- 2.Bc3#
- 1...b3
- 2.Bc3#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Raxd3#
- 2.Rhxd3#
- 1...f3
- 2.Sxf3#
- 2.Qe3#
- 1...fxe4!
- threat
- 1.Rb3?
- threat
- 2.Sf3#
- 1...Be2
- 2.Sxe2#
- 1...Bd3
- 2.Rbxd3#
- 2.Rhxd3#
- 1...f3
- 2.Sxf3#
- 2.Qe3#
- 1...fxe4!
- threat
- 1.Rhe3?
- threat
- 2.Sf3#
- 2.Sxf5#
- 1...fxe3
- 2.Qxe3#
- 1...fxe4
- 2.Sf5#
- 1...Bd3
- 2.Rcxd3#
- 2.Rexd3#
- 1...Be2
- 2.Sxe2#
- 2.Sxf5#
- 1...f3
- 2.Sxf3#
- 2.Sxf5#
- 1...bxc3!
- threat
- 1.Rhf3?
- 1...Bxc4
- 2.Rxc4#
- 1...bxc3
- 2.Bxc3#
- 1...fxe4
- 2.Sf5#
- 1...Bd3
- 2.Rcxd3#
- 2.Rfxd3#
- 1...Be2
- 2.Sxe2#
- 1...b3!
- 1...Bxc4
- 1.Rhg3?
- 1...Bxc4
- 2.Rxc4#
- 1...bxc3
- 2.Bxc3#
- 1...fxe4
- 2.Sf5#
- 1...Bd3
- 2.Rcxd3#
- 2.Rgxd3#
- 1...f3
- 2.Qe3#
- 1...b3
- 2.Sf3#
- 1...Be2
- 2.Sxe2#
- 1...fxg3+!
- 1...Bxc4
- 1.Qxf4?
- threat
- 2.Sxf5#
- 2.Qe3#
- 2.Qf2#
- 1...bxc3
- 2.Bxc3#
- 2.Qe3#
- 2.Qf2#
- 1...fxe4
- 2.Sf5#
- 2.Qe3#
- 2.Qxe4#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...exf4!
- threat
- 1.Qh4?
- threat
- 2.Qf2#
- 1...fxe4
- 2.Sf5#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...f3!
- threat
- 1.Qe6?
- threat
- 2.Qd5#
- 1...Bxc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...f3!
- threat
- 1.Qxh7?
- 1...Bxc4
- 2.Rxc4#
- 1...bxc3
- 2.Bxc3#
- 1...fxe4
- 2.Sf5#
- 2.Qxe4#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...b3
- 2.Sf3#
- 1...Be2
- 2.Sxe2#
- 1...f3!
- 1...Bxc4
- 1.exf5?
- 1...bxc3
- 2.Bxc3#
- 1...Bd3
- 2.Rcxd3#
- 2.Rhxd3#
- 1...f3
- 2.Qe3#
- 1...e4
- 2.Qg7#
- 2.Qf6#
- 1...b3
- 2.Sf3#
- 1...Be2
- 2.Sxe2#
- 1...Bxc4!
- 1...bxc3
- 1.Sb5+?
- Keys
- 1.Rce3!
- 1...Bxc4
- 2.Sxf5#
- 1...fxe3
- 2.Qxe3#
- 1...fxe4
- 2.Rxe4#
- 1...Bd3
- 2.Rxd3#
- 1...b3
- 2.Bc3#
- 1...Be2
- 2.Sxe2#
- 1...f3
- 2.Sxf3#
- 1...Bxc4
- 1.Rce3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(a);N_GUARD::S(A),XB(a)
- B(a);OGATE,XP(E)::R1(C),XB(a)
- P(c);OGATE,XR(C)::B(G),XP(c)
- P(c);::S(A)
- P(e);OGATE::QAB1(I)
- P(h);SBLOCK,XP(F)::S(H)
- Tries
- Try
- S(H);CHECK
- Vars
- K(d);P-FLIGHT,XP(F)::QAB(I)
- Refutation
- P(i);XS(H)
- Try
- B(G);XP(c)
- Threat
- S(A)
- Vars
- P(h);SBLOCK,XP(F)::S(H)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(f);XB(G)
- Try
- R(C);
- Threat
- S(A)
- Vars
- P(c);OGATE,XR(C)::B(G)
- P(c);OGATE::B(G)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(h);XP(F)
- Try
- R(C);
- Threat
- S(A)
- Vars
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(h);XP(F)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XR(D)::QAB1(I),XP(e)
- P(h);XP(F)::S(H)
- Refutation
- P(c);XR(C)
- Try
- R(D);
- Vars
- B(a);OGATE,XP(E)::R1(C),XB(a)
- P(c);OGATE,XR(C)::B(G),XP(c)
- P(h);SBLOCK,XP(F)::S(H)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(c);
- Try
- R(D);
- Vars
- B(a);OGATE,XP(E)::R1(C),XB(a)
- P(c);OGATE,XR(C)::B(G),XP(c)
- P(h);SBLOCK,XP(F)::S(H)
- P(e);OGATE::QAB1(I)
- P(c);::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(e);CHECK,XR(D)
- Try
- Q(I);XP(e)
- Threat
- DUALS(3)
- Refutation
- P(g);XQ(I)
- Try
- Q(I);
- Threat
- QAB(I)
- Vars
- P(h);SBLOCK,XP(F)::S(H)
- Refutation
- P(e);
- Try
- Q(I);
- Threat
- QAR1(I)
- Refutation
- P(e);
- Try
- Q(I);XP(j)
- Vars
- B(a);OGATE,XP(E)::R1(C),XB(a)
- P(c);OGATE,XR(C)::B(G),XP(c)
- P(c);::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- P(e);
- Try
- P(F);XP(h)
- Vars
- P(c);OGATE,XR(C)::B(G),XP(c)
- P(e);OGATE::QAB1(I)
- P(c);::S(A)
- B(a);N_GUARD::S(A),XB(a)
- Refutation
- B(a);XP(E)
- Try
- Actual
- R(C);
- Vars
- B(a);SBLOCK,XP(E)::S(H),XP(h)
- P(e);OGATE,XR(C)::QAB1(I),XP(e)
- P(h);OGATE,XP(F)::R1(C),XP(h)
- B(a);N_GUARD::R1(C),XB(a)
- P(c);OGATE::B(G)
- B(a);N_GUARD::S(A),XB(a)
- P(e);::S(A),XP(e)
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