MESON Chess Problem Database
Problem Display
PID: 67564 (2b5/1p1p3p/pB1K2pr/b5Rp/QnkN1P1R/5P2/N1p1P3/2n5 w - - 0 1)
Stocchi, Ottavio
3rd Prize, The Hindu, 1955
#2
10 + 13
| 5407 | Selected Stocchi (II) | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...Bxb6
- Tries
- 1.Sxc2?
- threat
- 2.Sa3#
- 2.Se3#
- 2.Rc5#
- 2.f5#
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Rc5#
- 1...Sb3
- 2.Sa3#
- 2.Se3#
- 1...Sd3
- 2.Sa3#
- 2.Se3#
- 1...Sxe2!
- threat
- 1.Sb5?
- threat
- 2.Sa3#
- 2.Rc5#
- 2.f5#
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Rc5#
- 2.f5#
- 1...axb5
- 2.f5#
- 1...Sb3
- 2.Sa3#
- 1...Sd3
- 2.Sa3#
- 1...Sxe2!
- threat
- 1.Rh1?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...h4!
- 1...Bxb6
- 1.Rh2?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...h4!
- 1...Bxb6
- 1.Rh3?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...h4!
- 1...Bxb6
- 1.Rg1?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Rg2?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Rg3?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Rxa5?
- threat
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- threat
- 1.Rb5?
- 1...Bxb6
- 2.Rxb4#
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...axb5
- 2.Qxb5#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Rd5?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Re5?
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...g5+!
- 1...Bxb6
- 1.Qa3?
- threat
- 2.Qc3#
- 1...Scxa2
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sbxa2
- 2.Qc5#
- 1...Sb3
- 2.Qxb3#
- 1...Sd5
- 2.Qc5#
- 1...Sc6
- 2.Qc5#
- 1...Sbd3!
- threat
- 1.f5?
- threat
- 2.Sxc2#
- 2.Sb3#
- 2.Sb5#
- 2.Sc6#
- 2.Se6#
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Sb5#
- 2.Qb3#
- 1...Sxe2
- 2.Qb3#
- 1...Sb3
- 2.Sxb3#
- 2.Qxb3#
- 1...Sd3
- 2.Qb3#
- 1...gxf5+!
- threat
- 1.Sxc2?
- Keys
- 1.Sc6!
- threat
- 2.Sxa5#
- 2.Se5#
- 2.Rc5#
- 2.f5#
- 1...Bxb6
- 2.Qxb4#
- 1...Sxa2
- 2.Rc5#
- 1...Sxe2
- 2.Se5#
- 1...bxc6
- 2.f5#
- 1...dxc6
- 2.f5#
- 1...Sb3
- 2.Se5#
- 1...Sd3
- 2.Sxa5#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Tries
- Try
- S(E);XP(b)
- Threat
- DUALS(4)
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);XS(A)::R1(H)
- Refutation
- S(a);XP(B)
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- P(g);XS(E)::R(G)+P(F)
- S(a);::S(E)
- Refutation
- S(a);XP(B)
- Try
- R(G);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(f);
- Try
- R(G);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(f);
- Try
- R(G);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(f);
- Try
- R(H);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);XB(e)
- Threat
- QAR1(D),XS(c)
- Vars
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);
- Vars
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- P(g);OGATE,XR(H)::QAB1(D),XP(g)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- R(H);
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK
- Try
- Q(D);N_PINS(c)
- Threat
- QAR1(D)
- Vars
- S(a);N_GUARD,XS(A)::QAB1(D)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(c);OGATE,XS(A)::QAR1(D)
- S(a);N_GUARD::QAB1(D),XS(a)
- S(c);OGATE::QAR1(D)
- Refutation
- S(c);
- Try
- P(F);
- Threat
- DUALS(5)
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);N_GUARD,XP(B)::QAB1(D)
- S(a);N_GUARD::QAB1(D)
- Refutation
- P(h);CHECK,XP(F)
- Try
- Actual
- S(E);
- Threat
- DUALS(4)
- Vars
- B(e);N_GUARD,XB(I)::QAR1(D),XS(c)
- S(a);XS(A)::R1(H)
- S(a);XP(B)::S(E)
- P(j);XS(E)::R(G)+P(F)
- P(k);XS(E)::R(G)+P(F)
- S(a);::S(E)
- S(a);::S(E),XB(e)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).