MESON Chess Problem Database
Problem Display
PID: 121698 (1K2Rbb1/2p2nN1/5N2/4P2r/Qp1k4/1PR2nP1/1B4q1/5r2 w - - 0 1)
Stocchi, Ottavio
Skakbladet, 1947
#2
10 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sf5#
- 1...Rh2
- 2.Sf5#
- 1...Rh3
- 2.Sf5#
- 1...Rh4
- 2.Sf5#
- 1...Rf5
- 2.Sxf5#
- 1...Rh6
- 2.Sf5#
- 1...Rh7
- 2.Sf5#
- 1...Rh8
- 2.Sf5#
- 1...Bxg7
- 2.Qxb4#
- 1...S3xe5
- 2.Se6#
- 1...Sg5
- 2.Sf5#
- 1...Rh1
- Tries
- 1.Rd3+?
- 1...Kc5
- 2.Sd7#
- 1...Kxd3!
- 1...Kc5
- 1.Qb5?
- threat
- 2.Se6#
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 2.Qd5#
- 1...Qxb2
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...Rxe5
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...Bxg7
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 2.Qxb4#
- 2.Qc5#
- 2.Qd5#
- 1...S3xe5
- 2.Se6#
- 2.Rd3#
- 1...S7xe5
- 2.Rd3#
- 1...Qh3
- 2.Rd3#
- 2.Rxf3#
- 2.Qd3#
- 2.Qc4#
- 2.Qd5#
- 1...Qc2
- 2.Se6#
- 2.Rd3#
- 2.Qc4#
- 2.Qd5#
- 1...Qd2
- 2.Se6#
- 2.Rd3#
- 2.Qc4#
- 2.Qd5#
- 1...Qe2
- 2.Se6#
- 2.Rd3#
- 2.Qd5#
- 1...Rd1
- 2.Se6#
- 2.Rd3#
- 2.Qc4#
- 2.Qd5#
- 1...Bc5
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 2.Qxc5#
- 1...Be7
- 2.Se6#
- 2.Rd3#
- 2.Qd5#
- 1...Bh7
- 2.Se6#
- 2.Rd3#
- 2.Qc4#
- 2.Qd5#
- 1...Se1
- 2.Se6#
- 2.Rd3#
- 2.Qc4#
- 1...Sg1
- 2.Se6#
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...Sd2
- 2.Se6#
- 2.Rd3#
- 2.Rf3#
- 2.Qd3#
- 1...Sh2
- 2.Se6#
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...Sh4
- 2.Se6#
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...S3g5
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...S7g5
- 2.Sf5#
- 2.Rd3#
- 2.Qd3#
- 1...Sd6
- 2.Rd3#
- 2.Qd3#
- 2.Qc5#
- 1...Sh6
- 2.Rd3#
- 2.Qd3#
- 1...Sd8
- 2.Rd3#
- 2.Qd3#
- 1...Sh8
- 2.Rd3#
- 2.Qd3#
- 1...c5
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...c6
- 2.Se6#
- 2.Rd3#
- 2.Qd3#
- 2.Qc4#
- 1...bxc3!
- threat
- 1.Qd7+?
- 1...Bd6
- 2.Qg4#
- 1...Sd6!
- 1...Bd6
- 1.Qa7+?
- 1...Bc5
- 2.Qxc5#
- 1...c5!
- 1...Bc5
- 1.Rd3+?
- Keys
- 1.Qc6!
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qc4#
- 1...Qxb2
- 2.Qc4#
- 1...Rxe5
- 2.Qc4#
- 1...S3xe5
- 2.Se6#
- 1...S7xe5
- 2.Qe4#
- 1...bxc3
- 2.Qxc3#
- 1...Be7
- 2.Qe4#
- 2.Qd5#
- 1...Qc2
- 2.Qd5#
- 2.Qc4#
- 1...Qe2
- 2.Qd5#
- 1...Re1
- 2.Qd5#
- 2.Qc4#
- 1...Rh4
- 2.Sf5#
- 2.Qd5#
- 2.Qc4#
- 1...Bc5
- 2.Qe4#
- 2.Qd5#
- 2.Qxc5#
- 1...Bh7
- 2.Qd5#
- 2.Qc4#
- 1...Se1
- 2.Qc4#
- 1...Sg1
- 2.Qc4#
- 1...Sd2
- 2.Rf3#
- 1...Sh2
- 2.Qc4#
- 1...Sh4
- 2.Qc4#
- 1...S3g5
- 2.Qc4#
- 1...S7g5
- 2.Sf5#
- 1...Sd6
- 2.Qc5#
- 1...Sh6
- 2.Qe4#
- 1...Sd8
- 2.Qe4#
- 1...Sh8
- 2.Qe4#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 9
- Sets
- R(f);N_GUARD::S(H)
- R(f);N_GUARD::S(H),XR(f)
- B(i);N_GUARD,XS(H)::QAR2(E),XP(d)
- S(c);SBLOCK,XP(F)::S(H)
- S(h);S_CUTR(f)::S(H)
- Tries
- Try
- R(C);CHECK
- Vars
- K(e);N_SPINP(d),S_FLIGHT::S(G)
- Refutation
- K(e);N_SPINP(d),P-FLIGHT,XR(C)
- Try
- Q(E);N_PINP(d)
- Threat
- DUALS(5)
- Vars
- S(h);XP(F)::B(A)+R(C),DCHECK
- Refutation
- P(d);P_SPINP(d),XR(C)
- Try
- Q(E);CHECK,N_PINP(d)
- Vars
- B(i);P_SPINB(i)::QAR(E)
- Refutation
- S(h);P_SPINS(h)
- Try
- Q(E);CHECK,N_PINP(d)
- Vars
- B(i);N_GUARD,P_SPINB(i)::QAB1(E),XB(i)
- Refutation
- P(g);P_SPINP(g)
- Try
- Actual
- Q(E);N_PINP(d)
- Threat
- DUALS(3)
- Vars
- Q(b);XB(A)::QAR1(E)
- R(f);XP(F)::QAR1(E)
- S(c);SBLOCK,XP(F)::S(H)
- S(h);XP(F)::QAR1(E)
- P(d);OGATE,P_SPINP(d),XR(C)::QAB1(E),XP(d)
- Q(b);::QAR1(E)
- S(c);::QAR1(E)
- S(c);S_CUTQ(b)::B(A)+R(C)
- S(h);S_CUTR(f)::S(H)
- S(h);S_CUTB(i)::QAB1(E)
- S(h);::QAR1(E)
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).