MESON Chess Problem Database
Problem Display
PID: 259242 (rNR4K/kp6/7p/1p2p2r/6p1/N1B5/8/1Q6 w - - 0 1)
Pirrone, Santi
2nd Comm., Schweizerische Schachzeitung, 1959
#2
6 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Kb6
- 2.Qg1#
- 1...b6
- 2.Qh7#
- 1...Kb6
- Tries
- 1.Sc6+?
- 1...Ka6
- 2.Qxb5#
- 1...Kb6
- 2.Qxb5#
- 1...bxc6!
- 1...Ka6
- 1.Bd4+?
- 1...b6
- 2.Qh7#
- 1...exd4!
- 1...b6
- 1.Qa2?
- threat
- 2.Sc4#
- 1...Kb6
- 2.Qf2#
- 1...b6
- 2.Qf7#
- 1...Rh2!
- threat
- 1.Qxb5?
- threat
- 2.Qa5#
- 1...b6
- 2.Qa6#
- 2.Qd7#
- 1...e4!
- threat
- 1.Sc6+?
- Keys
- 1.Qb4!
- threat
- 2.Qa5#
- 1...Kb6
- 2.Qc5#
- 1...b6
- 2.Qe7#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- K(f);P_SPINP(b),S_CUTP(g),S_FLIGHT::QAB(A)
- P(g);OGATEB,SBLOCK::QAB1(A)
- Tries
- Try
- S(D);CHECK,P_SPINR(E)
- Vars
- K(f);P-FLIGHT,S_CUTP(g)::QAB1(A),XP(b)
- K(f);P_SPINP(b),S_CUTP(g),S_FLIGHT::QAR1(A),XP(b)
- Refutation
- P(g);XS(D)
- Try
- B(C);CHECK
- Vars
- P(g);P_SPINP(g),S_CUTP(c)::QAB1(A)
- Refutation
- P(c);XB(C)
- Try
- Q(A);
- Threat
- QAR(A)+S(B)
- Vars
- K(f);S_CUTP(g),S_FLIGHT::QAB(A)
- P(g);OGATEB,SBLOCK::QAR(A)
- Refutation
- R(d);
- Try
- Q(A);XP(b)
- Threat
- QAR2(A)
- Refutation
- P(c);
- Try
- Actual
- Q(A);
- Threat
- QAR2(A)
- Vars
- K(f);P_SPINP(b),S_CUTP(g),S_FLIGHT::QAB1(A)
- P(g);OGATEB,SBLOCK::QAR(A)
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).