MESON Chess Problem Database
Problem Display
PID: 18670 (5nQ1/1Kp2R2/p1N1r1p1/3k4/2r1NB2/1R3P2/B4n2/8 w - - 0 1)
Lipton, Michael
3rd HM., Probleemblad, 1957
#2
9 + 8
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rb4+
- 2.Rxb4#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rcxe4
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Rcxc6
- 2.Rd3#
- 1...Rexe4
- 2.Rf5#
- 1...Re5
- 2.Rd7#
- 1...Rexc6
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Rc1
- Tries
- 1.Sc3+?
- 1...Rxc3
- 2.Rxc3#
- 2.Rb5#
- 1...Kc5!
- 1...Rxc3
- 1.Sb4+?
- 1...Rxb4+
- 2.Rxb4#
- 1...Kd4!
- 1...Rxb4+
- 1.Bh2?
- 1...Rb4+
- 2.Rxb4#
- 1...Rcxe4
- 2.Rb5#
- 1...Rcxc6
- 2.Rd3#
- 1...Rexe4
- 2.Rf5#
- 1...Rexc6
- 2.Rd7#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Re5
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Sxe4!
- 1...Rb4+
- 1.Bg3?
- 1...Rb4+
- 2.Rxb4#
- 1...Rcxe4
- 2.Rb5#
- 1...Rcxc6
- 2.Rd3#
- 1...Rexe4
- 2.Rf5#
- 1...Rexc6
- 2.Rd7#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Re5
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Sxe4!
- 1...Rb4+
- 1.Bxc7?
- 1...Rb4+
- 2.Rxb4#
- 1...Rcxe4
- 2.Rb5#
- 1...Rcxc6
- 2.Rd3#
- 1...Rexe4
- 2.Rf5#
- 1...Rexc6
- 2.Rd7#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Re5
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Sxe4!
- 1...Rb4+
- 1.Ra3?
- threat
- 2.Ra5#
- 1...Rxe4
- 2.Rf5#
- 1...Rxc6
- 2.Rd7#
- 1...Re5
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd3
- 2.Rxd3#
- 1...Sd7
- 2.Rxd7#
- 1...a5
- 2.Rxa5#
- 1...Sxe4!
- threat
- 1.Rc3?
- threat
- 2.Bxc4#
- 1...Rxe4
- 2.Rf5#
- 1...Rxc6
- 2.Rd7#
- 1...Sxe4!
- threat
- 1.Rb4?
- threat
- 2.Bxc4#
- 1...Rxe4
- 2.Rf5#
- 1...Rxc6
- 2.Rd7#
- 1...Sxe4!
- threat
- 1.Rf6?
- 1...Rb4+
- 2.Rxb4#
- 1...Rxe4
- 2.Rb5#
- 1...Rxc6
- 2.Rd3#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Sd3
- 2.Rxd3#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Qxe6#
- 1...Sh7
- 2.Qxe6#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Sxe4!
- 1...Rb4+
- 1.Rg7?
- 1...Rb4+
- 2.Rxb4#
- 1...Rxe4
- 2.Rb5#
- 1...Rxc6
- 2.Rd3#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Sd3
- 2.Rxd3#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rxg5#
- 1...Sxe4!
- 1...Rb4+
- 1.Rxf8?
- threat
- 2.Rd8#
- 1...Rb4+
- 2.Rxb4#
- 1...Rxe4
- 2.Rb5#
- 1...Rxc6
- 2.Rd3#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Sxe4!
- threat
- 1.Sc3+?
- Keys
- 1.Be3!
- 1...Rb4+
- 2.Rxb4#
- 1...Rcxe4
- 2.Rd3#
- 1...Rcxc6
- 2.Rb5#
- 1...Rexe4
- 2.Rd7#
- 1...Rexc6
- 2.Rf5#
- 1...Sxe4
- 2.Rd3#
- 1...Rc1
- 2.Rc3#
- 2.Rd3#
- 2.Rb5#
- 1...Rc2
- 2.Rd3#
- 2.Rb5#
- 1...Rc3
- 2.Rxc3#
- 2.Rb5#
- 1...Ra4
- 2.Rd3#
- 2.Rb5#
- 1...Rd4
- 2.Rd3#
- 2.Rb5#
- 1...Rc5
- 2.Rd3#
- 2.Rb5#
- 1...Re5
- 2.Rd7#
- 1...Rd6
- 2.Rf5#
- 1...Rf6
- 2.Rd7#
- 1...Re7
- 2.Rf5#
- 1...Re8
- 2.Rf5#
- 2.Rd7#
- 1...Sd1
- 2.Rd3#
- 1...Sh1
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sh3
- 2.Rd3#
- 1...Sg4
- 2.Rd3#
- 1...Sd7
- 2.Rxd7#
- 1...Sh7
- 2.Rd7#
- 1...a5
- 2.Rb5#
- 1...g5
- 2.Rf5#
- 1...Rb4+
- 1.Be3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
- Tries
- Try
- S(D);CHECK
- Refutation
- K(c);P-FLIGHT
- Try
- S(F);CHECK
- Vars
- R(b);CHECK,OGATE,XS(F)::B(A)+R(B),XR(b)
- Refutation
- K(c);P-FLIGHT
- Try
- B(E);
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- R(e);::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
- Refutation
- S(a);XS(D)
- Try
- B(E);
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- R(e);::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
- Refutation
- S(a);XS(D)
- Try
- B(E);XP(g)
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- R(e);::QAB(I)+R(H),DCHECK
- R(e);P_PINB(E)::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
- Refutation
- S(a);XS(D)
- Try
- R(B);P_PINR(b)
- Threat
- R(B)
- Vars
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- R(e);::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- P(d);::R(B),XP(d)
- Refutation
- S(a);XS(D)
- Try
- R(B);P_PINR(b)
- Threat
- B(A),XR(b)
- Vars
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- Refutation
- S(a);XS(D)
- Try
- R(B);P_PINR(b)
- Threat
- B(A),XR(b)
- Vars
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- Refutation
- S(a);XS(D)
- Try
- R(H);P_PINR(e)
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- S(a);N_GUARD::R(B),XS(a)
- S(a);N_GUARD::R(B)
- S(h);N_GUARD::QAB1(I),XR(e)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
- Refutation
- S(a);XS(D)
- Try
- R(H);P_PINR(e)
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- S(a);N_GUARD::R(B),XS(a)
- S(a);N_GUARD::R(B)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);OGATE::R(H),XP(f)
- Refutation
- S(a);XS(D)
- Try
- R(H);P_PINR(e),XS(h)
- Threat
- R(H)
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- Refutation
- S(a);XS(D)
- Try
- Actual
- B(E);
- Vars
- R(b);CHECK,OGATEB::B(A)+R(B),XR(b)
- R(b);XS(D)::B(A)+R(B),DCHECK
- R(b);XS(F)::B(A)+R(B),DCHECK
- R(e);XS(D)::QAB(I)+R(H),DCHECK
- R(e);XS(F)::QAB(I)+R(H),DCHECK
- S(a);N_GUARD,XS(D)::R(B)
- R(e);::QAB(I)+R(H),DCHECK
- S(a);N_GUARD::R(B)
- S(a);N_GUARD::R(B),XS(a)
- S(h);N_GUARD::R(H),XS(h)
- S(h);N_GUARD::R(H)
- P(d);N_GUARD::R(B)
- P(f);N_GUARD::R(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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