MESON Chess Problem Database
Problem Display
PID: 18676 (2K2bN1/3QpBp1/3pn1p1/3pk1P1/3n3N/3R1P2/2p5/2B5 w - - 0 1)
Retter, Yosef
Problem (Zagreb), 1957
#2
9 + 10
| 3841 | The Art of Israeli Chess Composition | 1983 |
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sxf3
- 2.Qxe6#
- 1...Sb5
- 2.Qxe6#
- 1...Sf5
- 2.Sxg6#
- 2.Qxe6#
- 1...Sc6
- 2.Qxe6#
- 1...Sf4
- 2.Re3#
- 1...Sc5
- 2.Sxg6#
- 1...Sxg5
- 2.Sxg6#
- 1...Sc7
- 2.Sxg6#
- 1...Sd8
- 2.Sxg6#
- 1...Se2
- Tries
- 1.Kb8?
- 1...Sxf3
- 2.Qxe6#
- 1...Sxg5
- 2.Sxg6#
- 1...Se2
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sb5
- 2.Qxe6#
- 1...Sf5
- 2.Sxg6#
- 2.Qxe6#
- 1...Sf4
- 2.Re3#
- 1...Sc5
- 2.Sxg6#
- 1...Sc7
- 2.Sxg6#
- 1...Sd8
- 2.Sxg6#
- 1...Sc6+!
- 1...Sxf3
- 1.Sg2?
- 1...Sxf3
- 2.Qxe6#
- 1...Sxg5
- 2.Bf4#
- 1...Se2
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sb5
- 2.Qxe6#
- 1...Sf5
- 2.Qxe6#
- 1...Sc6
- 2.Qxe6#
- 1...Sf4
- 2.Bxf4#
- 2.Re3#
- 1...Sc5
- 2.Bf4#
- 1...Sc7
- 2.Bf4#
- 2.Re3#
- 1...Sd8
- 2.Bf4#
- 2.Re3#
- 1...Kf5!
- 1...Sxf3
- 1.Sh6?
- threat
- 2.Sxg6#
- 2.Sg4#
- 1...Sxf3
- 2.Qxe6#
- 1...Sxg5
- 2.Sg4#
- 1...Sf4
- 2.Sg4#
- 2.Re3#
- 1...gxh6!
- threat
- 1.Bf4+?
- 1...Sxf4
- 2.Re3#
- 1...Kxf4!
- 1...Sxf4
- 1.Qa7?
- 1...Sxf3
- 2.Qe3#
- 1...Sxg5
- 2.Qxd4#
- 1...Se2
- 2.Qe3#
- 1...Sb3
- 2.Qe3#
- 1...Sb5
- 2.Qe3#
- 1...Sf5
- 2.Sxg6#
- 1...Sc6
- 2.Qe3#
- 1...Sf4
- 2.Re3#
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Sd8
- 2.Qxd4#
- 1...Sc5!
- 1...Sxf3
- 1.Qxe7?
- 1...Sxf3
- 2.Qxe6#
- 1...Se2
- 2.Qxe6#
- 1...Sb3
- 2.Qxe6#
- 1...Sb5
- 2.Qxe6#
- 1...Sf5
- 2.Sxg6#
- 2.Qxe6#
- 1...Sc6
- 2.Qxe6#
- 1...Bxe7!
- 1...Sxf3
- 1.f4+?
- 1...Sxf4
- 2.Re3#
- 1...Ke4!
- 1...Sxf4
- 1.Kb8?
- Keys
- 1.Qa4!
- 1...Sxf3
- 2.Re3#
- 1...Sxg5
- 2.Qxd4#
- 1...Se2
- 2.Re3#
- 1...Sb3
- 2.Re3#
- 1...Sb5
- 2.Re3#
- 1...Sf5
- 2.Sxg6#
- 1...Sc6
- 2.Re3#
- 1...Sf4
- 2.Re3#
- 2.Qxd4#
- 1...Sc5
- 2.Qxd4#
- 1...Sc7
- 2.Qxd4#
- 1...Sd8
- 2.Qxd4#
- 1...Sxf3
- 1.Qa4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 9
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(b);N_GUARD::QAR1(F),XS(f)
- S(b);N_GUARD,XP(C)::QAR1(F),XS(f)
- S(f);SBLOCK::R(B)
- S(f);::S(D),XP(g)
- S(f);XP(E)::S(D),XP(g)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(b);N_GUARD,XP(C)::QAR1(F),XS(f)
- S(f);XP(E)::S(D),XP(g)
- S(b);N_GUARD::QAR1(F),XS(f)
- S(f);SBLOCK::R(B)
- S(f);::S(D),XP(g)
- Refutation
- S(b);CHECK
- Try
- S(D);
- Vars
- S(b);N_GUARD,XP(C)::QAR1(F),XS(f)
- S(f);N_GUARD,XP(E)::B(A)
- S(b);N_GUARD::QAR1(F),XS(f)
- S(f);N_GUARD::B(A)
- Refutation
- K(d);P-FLIGHT,P_SPINS(f)
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- S(b);N_GUARD,XP(C)::QAR1(F),XS(f)
- S(f);XP(E)::S(I)
- Refutation
- P(i);XS(I)
- Try
- B(A);CHECK
- Vars
- S(f);SBLOCK,XB(A)::R(B)
- Refutation
- K(d);S_FLIGHT,XB(A)
- Try
- Q(F);
- Vars
- S(b);OGATE,XP(C)::QAR2(F)
- S(f);N_GUARD,XP(E)::QAB1(F),XS(b)
- S(b);OGATE::QAR2(F)
- S(b);SBLOCK::S(D),XP(g)
- S(f);N_GUARD::QAB1(F),XS(b)
- Refutation
- S(f);
- Try
- Q(F);P_PINS(f),XP(h)
- Vars
- S(b);N_GUARD,XP(C)::QAR1(F),XS(f)
- S(b);N_GUARD::QAR1(F),XS(f)
- Refutation
- B(j);N_SPINS(f),XQ(F)
- Try
- P(C);CHECK
- Vars
- S(f);SBLOCK,XP(C)::R(B)
- Refutation
- K(d);P-FLIGHT
- Try
- Actual
- Q(F);
- Vars
- S(b);XP(C)::R(B)
- S(f);N_GUARD,XP(E)::QAB1(F),XS(b)
- S(b);::R(B)
- S(b);SBLOCK::S(D),XP(g)
- S(f);N_GUARD::QAB1(F),XS(b)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).