MESON Chess Problem Database
Problem Display
PID: 17539 (6Q1/7p/p1p4p/R1P1P2R/2Pk1N2/1n3P2/BKp5/n1B5 w - - 0 1)
Stocchi, Ottavio
1/2 Prize, Polish Chess Problem Association, 1947
#2
11 + 8
| 81 | Chess | 1956 |
| 268 | Chess Life | 1958 |
| 3105 | FIDE Album (1945-1955) | 1964 |
| 3100 | Selected Stocchi (I) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Sxc1
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...Sxa5
- 2.Qg1#
- 1...Sxc5
- 2.Qg1#
- 1...Sxc1
- Tries
- 1.Rxa6?
- 1...Sxc1
- 2.Qg1#
- 1...Sxc5
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...Sa5
- 2.Qg1#
- 1...Kxc5!
- 1...Sxc1
- 1.Rf5?
- 1...Sxc1
- 2.Qg1#
- 1...Sxa5
- 2.Qg1#
- 1...Sxc5
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...h5!
- 1...Sxc1
- 1.Qg2?
- 1...Sxc1
- 2.Qg1#
- 2.Qf2#
- 1...Sxa5
- 2.Qg1#
- 2.Qf2#
- 1...Sxc5
- 2.Qg1#
- 2.Qf2#
- 1...Sd2
- 2.Qg1#
- 2.Qxd2#
- 2.Qf2#
- 1...Kxc4!
- 1...Sxc1
- 1.Qg3?
- 1...Sxc1
- 2.Qf2#
- 2.Qg1#
- 1...Sxa5
- 2.Qf2#
- 2.Qg1#
- 1...Sxc5
- 2.Qf2#
- 2.Qg1#
- 1...Sd2
- 2.Qf2#
- 2.Qg1#
- 1...Kxc4!
- 1...Sxc1
- 1.Qg4?
- 1...Sxc1
- 2.Qg1#
- 1...Sxa5
- 2.Qg1#
- 1...Sxc5
- 2.Qg1#
- 1...Sd2
- 2.Qg1#
- 1...Kxc4!
- 1...Sxc1
- 1.Qg6?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Kxc4
- 2.Qe4#
- 1...Sxc1
- 2.Qe4#
- 2.Qg1#
- 1...Sxa5
- 2.Se6#
- 2.Qg1#
- 2.Qd6#
- 1...Sxc5
- 2.Se2#
- 2.Qg1#
- 2.Qd6#
- 1...Sd2
- 2.Qd3#
- 2.Qg1#
- 1...hxg6!
- threat
- 1.Qg7?
- 1...Sxc1
- 2.Qg1#
- 1...Sxa5
- 2.Qg1#
- 2.e6#
- 1...Sxc5
- 2.Qg1#
- 2.e6#
- 1...Sd2
- 2.Qg1#
- 1...Kxc4!
- 1...Sxc1
- 1.e6?
- 1...Sxc1
- 2.Qg1#
- 1...Sxa5
- 2.Qg1#
- 2.Qg7#
- 2.Qd8#
- 2.Qh8#
- 1...Sxc5
- 2.Qg1#
- 2.Qg7#
- 2.Qh8#
- 1...Sd2
- 2.Qg1#
- 1...Kxc4!
- 1...Sxc1
- 1.Rxa6?
- Keys
- 1.Qxh7!
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Kxc4
- 2.Qe4#
- 1...Sxc1
- 2.Qe4#
- 1...Sxa5
- 2.Se6#
- 1...Sxc5
- 2.Se2#
- 1...Sd2
- 2.Qd3#
- threat
- 1.Qxh7!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 4
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(c);XB(A)::QAB(K)
- S(c);::QAB(K)
- S(c);XR(G)::QAB(K)
- S(c);XP(H)::QAB(K)
- Tries
- Try
- R(G);XP(e)
- Vars
- S(c);XB(A)::QAB(K)
- S(c);SBLOCK,XP(H)::QAB(K)
- S(c);::QAB(K)
- Refutation
- K(d);S_FLIGHT,XP(H)
- Try
- R(J);
- Vars
- S(c);XB(A)::QAB(K)
- S(c);XR(G)::QAB(K)
- S(c);XP(H)::QAB(K)
- S(c);::QAB(K)
- Refutation
- P(g);
- Try
- Q(K);
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XP(E)
- Try
- Q(K);
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XP(E)
- Try
- Q(K);
- Vars
- S(c);XB(A)::QAB(K)
- S(c);XR(G)::QAB(K)
- S(c);XP(H)::QAB(K)
- S(c);::QAB(K)
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XP(E)
- Try
- Q(K);
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT,P_SPINS(c),XP(E)::QAR2(K)
- Refutation
- P(h);XQ(K)
- Try
- Q(K);
- Vars
- S(c);XB(A)::QAB(K)
- S(c);::QAB(K)
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XP(E)
- Try
- P(I);
- Vars
- S(c);XB(A)::QAB(K)
- S(c);::QAB(K)
- Refutation
- K(d);P-FLIGHT,P_SPINS(c),XP(E)
- Try
- Actual
- Q(K);XP(h)
- Threat
- DUALS(2)
- Vars
- K(d);P-FLIGHT,P_SPINS(c),XP(E)::QAR2(K)
- S(c);XB(A)::QAR1(K)
- S(c);XR(G)::S(F)
- S(c);XP(H)::S(F)
- S(c);::QAR1(K)
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).