MESON Chess Problem Database
Problem Display
PID: 18904 (4k3/N2RPR1P/8/1r5P/B7/4B1p1/4Q1K1/8 w - - 0 1)
Lipton, Michael
3rd HM., Die Schwalbe, 1959
#2
10 + 3
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Rf8#
- 1...Rb2
- 2.Rf8#
- 1...Rb3
- 2.Rf8#
- 1...Rb4
- 2.Rf8#
- 1...Ra5
- 2.Rf8#
- 1...Rc5
- 2.Rf8#
- 1...Rd5
- 2.Rf8#
- 1...Re5
- 2.Rf8#
- 1...Rg5
- 2.Rf8#
- 1...Rxh5
- 2.Rf8#
- 1...Rb6
- 2.Rf8#
- 1...Rb7
- 2.Rf8#
- 1...Rb8
- 2.Rf8#
- 1...Rb1
- Tries
- 1.Bg5?
- 1...Kxd7
- 2.e8S#
- 1...Kxf7
- 2.e8Q#
- 2.e8R#
- 1...Rxg5
- 2.Rf8#
- 1...Rb1
- 2.Rf8#
- 1...Rb2
- 2.Rf8#
- 1...Rb3
- 2.Rf8#
- 1...Rb4
- 2.Rf8#
- 1...Ra5
- 2.Rf8#
- 1...Rc5
- 2.Rf8#
- 1...Rd5
- 2.Rf8#
- 1...Re5
- 2.Rf8#
- 1...Rb6
- 2.Rf8#
- 1...Rb7
- 2.Rf8#
- 1...Rb8
- 2.Rf8#
- 1...Rf5!
- 1...Kxd7
- 1.Rf6?
- 1...Rxh5
- 2.Rf8#
- 2.Qxh5#
- 1...Rf5
- 2.h8Q#
- 2.h8R#
- 1...Rb1
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rb2
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rb3
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rb4
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Ra5
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rc5
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rd5
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Re5
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rg5
- 2.Rf8#
- 1...Rb6
- 2.Rf8#
- 2.h8Q#
- 2.h8R#
- 1...Rb7
- 2.Rf8#
- 2.Rxb7#
- 2.h8Q#
- 2.h8R#
- 1...Rb8
- 2.Rf8#
- 2.Rb7#
- 2.h8Q#
- 2.h8R#
- 1...Kxd7!
- 1...Rxh5
- 1.Qc4?
- threat
- 2.Rd8#
- 1...Kxd7
- 2.Qc6#
- 1...Rd5
- 2.Rf8#
- 1...Rb2+!
- threat
- 1.Qg4?
- threat
- 2.Rf8#
- 1...Kxf7
- 2.Qg6#
- 1...Rf5
- 2.Qg8#
- 1...Rb2+!
- threat
- 1.Qc2?
- 1...Kxd7
- 2.Qc6#
- 1...Kxf7
- 2.Qg6#
- 1...Rxh5
- 2.Rf8#
- 1...Rb1
- 2.Rf8#
- 1...Rb2
- 2.Rf8#
- 1...Rb3
- 2.Rf8#
- 1...Rb4
- 2.Rf8#
- 1...Ra5
- 2.Rf8#
- 1...Rc5
- 2.Rf8#
- 1...Rd5
- 2.Rf8#
- 1...Re5
- 2.Rf8#
- 1...Rg5
- 2.Rf8#
- 1...Rb6
- 2.Rf8#
- 1...Rb7
- 2.Rf8#
- 1...Rb8
- 2.Rf8#
- 1...Rf5!
- 1...Kxd7
- 1.h8Q+?
- 1...Kxf7
- 2.e8Q#
- 2.e8R#
- 1...Kxd7!
- 1...Kxf7
- 1.Bg5?
- Keys
- 1.Bc5!
- 1...Kxd7
- 2.e8Q#
- 2.e8R#
- 1...Kxf7
- 2.e8S#
- 1...Rxc5
- 2.Rf8#
- 1...Rb1
- 2.Rf8#
- 1...Rb2
- 2.Rf8#
- 1...Rb3
- 2.Rf8#
- 1...Rb4
- 2.Rf8#
- 1...Ra5
- 2.Rf8#
- 1...Rb6
- 2.Rf8#
- 1...Rb7
- 2.Rf8#
- 1...Rb8
- 2.Rf8#
- 1...Kxd7
- 1.Bc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 4
- Sets
- R(b);::R1(I)
- R(b);P_PINQ(A)::R1(I)
- R(b);XP(E)::R1(I)
- Tries
- Try
- B(C);
- Vars
- K(c);OGATE,P_SPINR(b),S_FLIGHT,XR(G)::P=S
- K(c);OGATE,S_FLIGHT,XR(I)::P=Q
- R(b);XB(C)::R1(I)
- R(b);::R1(I)
- R(b);P_PINQ(A)::R1(I)
- Refutation
- R(b);
- Try
- R(I);
- Vars
- R(b);::P=Q
- R(b);::R1(I)
- Refutation
- K(c);P_SPINR(b),S_FLIGHT,XR(G)
- Try
- Q(A);
- Threat
- R1(G)
- Vars
- K(c);OGATEB,P_SPINR(b),S_FLIGHT,XR(G)::QAB1(A)
- R(b);::R1(I)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Threat
- R1(I)
- Vars
- K(c);OGATEB,S_FLIGHT,XR(I)::QAB1(A)
- R(b);::QAR2(A)
- Refutation
- R(b);CHECK
- Try
- Q(A);
- Vars
- K(c);OGATEB,P_SPINR(b),S_FLIGHT,XR(G)::QAB1(A)
- K(c);OGATEB,S_FLIGHT,XR(I)::QAB1(A)
- R(b);XP(E)::R1(I)
- R(b);::R1(I)
- R(b);P_PINQ(A)::R1(I)
- Refutation
- R(b);
- Try
- P(J);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XR(I)::P=Q
- Refutation
- K(c);P_SPINR(b),S_FLIGHT,XR(G)
- Try
- Actual
- B(C);
- Vars
- K(c);OGATE,P_SPINR(b),S_FLIGHT,XR(G)::P=Q
- K(c);OGATE,S_FLIGHT,XR(I)::P=S
- R(b);XB(C)::R1(I)
- R(b);::R1(I)
- R(b);P_PINQ(A)::R1(I)
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).