MESON Chess Problem Database
Problem Display
PID: 243905 (1QB5/2Rr4/3NN3/1P2k1P1/R3Pp2/B4P2/2K5/8 w - - 0 1)
Fleck, Ferenc
L'Italia Scacchistica, 1950
#2
12 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd6
- 2.Rc5#
- 1...Rxc7+
- 2.Sc4#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Rxd6
- Tries
- 1.Kb1?
- 1...Rxd6
- 2.Rc5#
- 1...Rxc7
- 2.Sc4#
- 2.Sf7#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxd6
- 1.Kc1?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Kb2?
- 1...Rxd6
- 2.Rc5#
- 1...Rxc7
- 2.Sc4#
- 2.Sf7#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxd6
- 1.Kb3?
- 1...Rxd6
- 2.Rc5#
- 1...Rxc7
- 2.Sc4#
- 2.Sf7#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxd6
- 1.Kc3?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Sf7+?
- 1...Rxf7
- 2.Rc5#
- 2.Re7#
- 2.Rxf7#
- 1...Kxe6!
- 1...Rxf7
- 1.Bb4?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Rac4?
- 1...Rxd6
- 2.R7c5#
- 1...Rxc7
- 2.Sf7#
- 1...Re7
- 2.R7c5#
- 1...Rf7
- 2.Sxf7#
- 2.R7c5#
- 1...Rg7
- 2.R7c5#
- 1...Rh7
- 2.R7c5#
- 1...Rd8
- 2.Sf7#
- 2.R7c5#
- 1...Kxe6!
- 1...Rxd6
- 1.Rd4?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Bxd6#
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rd5#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rd5#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rd5#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rd5#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rd5#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Ra5?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 2.b6#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 2.b6#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 2.b6#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 2.b6#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 2.b6#
- 1...Kxe6!
- 1...Rxc7+
- 1.Ra6?
- threat
- 2.Sc4#
- 1...Rxd6
- 2.Bxd6#
- 2.Rc5#
- 1...Kxe6!
- threat
- 1.Raa7?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Ra8?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Rc3?
- 1...Rxd6
- 2.Bxd6#
- 2.Rc5#
- 2.Qxd6#
- 1...Ra7
- 2.Sc4#
- 2.Sb7#
- 2.Sf7#
- 2.Rc5#
- 1...Rb7
- 2.Sc4#
- 2.Sxb7#
- 2.Sf7#
- 2.Rc5#
- 1...Rc7
- 2.Sc4#
- 2.Sf7#
- 1...Re7
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxd6
- 1.Rcc4?
- 1...Rxd6
- 2.Bb2#
- 2.Bxd6#
- 2.Rc5#
- 2.Qxd6#
- 1...Ra7
- 2.Sb7#
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rb7
- 2.Sxb7#
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rc7
- 2.Sf7#
- 1...Re7
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rf7
- 2.Sxf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rg7
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rh7
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Rd8
- 2.Sf7#
- 2.Bb2#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxd6
- 1.Rc6?
- threat
- 2.Sc4#
- 2.Sf7#
- 1...Rxd6
- 2.Bb2#
- 2.Bxd6#
- 2.Rc5#
- 2.Qxd6#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Bb2#
- 2.Rc5#
- 1...Kxe6!
- threat
- 1.Rca7?
- 1...Rc7+
- 2.Sc4#
- 1...Rxd6
- 2.Bb2#
- 2.Bxd6#
- 2.Qxd6#
- 1...Rxa7
- 2.Sc4#
- 2.Sb7#
- 2.Sf7#
- 2.Bb2#
- 1...Rb7
- 2.Sc4#
- 2.Sxb7#
- 2.Sf7#
- 2.Bb2#
- 1...Re7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Bb2#
- 1...Rg7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rh7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Kxe6!
- 1...Rc7+
- 1.Rb7?
- 1...Rc7+
- 2.Sc4#
- 1...Rxd6
- 2.Bb2#
- 2.Bxd6#
- 2.Qxd6#
- 1...Rxb7
- 2.Sc4#
- 2.Sxb7#
- 2.Sf7#
- 2.Bb2#
- 1...Re7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Bb2#
- 1...Rg7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rh7
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Bb2#
- 1...Kxe6!
- 1...Rc7+
- 1.b6?
- 1...Rxc7+
- 2.Sc4#
- 1...Rxd6
- 2.Rc5#
- 1...Re7
- 2.Sc4#
- 2.Ra5#
- 2.Rc5#
- 1...Rf7
- 2.Sc4#
- 2.Sxf7#
- 2.Ra5#
- 2.Rc5#
- 1...Rg7
- 2.Sc4#
- 2.Ra5#
- 2.Rc5#
- 1...Rh7
- 2.Sc4#
- 2.Ra5#
- 2.Rc5#
- 1...Rd8
- 2.Sc4#
- 2.Sf7#
- 2.Ra5#
- 2.Rc5#
- 1...Kxe6!
- 1...Rxc7+
- 1.Kb1?
- Keys
- 1.Sc5!
- 1...Kxd6
- 2.Rxd7#
- 1...Rxd6
- 2.Re7#
- 1...Rxc7
- 2.Sf7#
- 1...Re7
- 2.Sd3#
- 2.Rxe7#
- 1...Rf7
- 2.Sd3#
- 2.Sxf7#
- 1...Rg7
- 2.Sd3#
- 1...Rh7
- 2.Sd3#
- 1...Rd8
- 2.Sd3#
- 2.Sf7#
- 2.Re7#
- 1...Kxd6
- 1.Sc5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(c);XS(H)::R(J)
- R(c);CHECK,XR(J)::S(H)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- K(A);P-FLIGHT
- Vars
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- K(A);S_FLIGHT
- Vars
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- K(A);P-FLIGHT
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- S(H);CHECK
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- B(B);
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Vars
- R(c);XS(H)::R(J)
- R(c);N_GUARD,P_PINR(D),XR(J)::S(H)
- R(c);::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Vars
- R(c);CHECK,XR(J)::S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Threat
- S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(D);
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(J);
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(J);
- Vars
- R(c);P_PINR(J)::S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(J);
- Threat
- DUALS(2)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(J);
- Vars
- R(c);CHECK::S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- R(J);
- Vars
- R(c);CHECK::S(H)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- P(F);
- Vars
- R(c);CHECK,XR(J)::S(H)
- R(c);XS(H)::R(J)
- Refutation
- K(b);P-FLIGHT,P_SPINR(c),XS(I)
- Try
- Actual
- S(I);
- Vars
- K(b);OGATEB,S_FLIGHT,XS(H)::QAB(K)+R(J),DCHECK,XR(c)
- R(c);OGATE,XS(H)::R(J)
- R(c);N_GUARD,P_PINS(I),XR(J)::S(H)
- R(c);::S(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).