MESON Chess Problem Database
Problem Display
PID: 114160 (4R1B1/p2p3K/NRPk1PnB/7Q/8/7p/7b/2r4b w - - 0 1)
Stocchi, Ottavio
American Chess Bulletin, 1955
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qc5#
- 1...Rb1
- 2.Qc5#
- 1...Rd1
- 2.Qc5#
- 1...Re1
- 2.Qc5#
- 1...Rf1
- 2.Qc5#
- 1...Rg1
- 2.Qc5#
- 1...Rc5
- 2.Qxc5#
- 1...Rxc6
- 2.Qc5#
- 1...Bd5
- 2.Qxd5#
- 1...Bxc6
- 2.Qd5#
- 1...Sf4
- 2.Bf8#
- 2.Qe5#
- 1...Sh4
- 2.Bf8#
- 1...Se5
- 2.Bf8#
- 1...Sf8+
- 2.Bxf8#
- 1...Sh8
- 2.Bf8#
- 1...dxc6
- 2.Rd8#
- 1...Ra1
- Tries
- 1.Bf4+?
- 1...Sxf4
- 2.Qe5#
- 1...Se5
- 2.Qxe5#
- 1...Bxf4!
- 1...Sxf4
- 1.Bf8+?
- 1...Se7
- 2.Bxe7#
- 1...Sxf8+!
- 1...Se7
- 1.Rd8?
- threat
- 2.Rxd7#
- 1...Sf8+
- 2.Bxf8#
- 1...Rxc6
- 2.Qc5#
- 1...Bxc6
- 2.Qd5#
- 1...Se5
- 2.Bf8#
- 1...axb6!
- threat
- 1.Qd1+?
- 1...Bd5
- 2.Qxd5#
- 1...Rxd1!
- 1...Bd5
- 1.Qg4?
- threat
- 2.Qxd7#
- 1...Sf8+
- 2.Bxf8#
- 1...Rxc6
- 2.Qb4#
- 1...Bxc6
- 2.Qd4#
- 1...dxc6
- 2.Qe6#
- 1...Se5
- 2.Bf8#
- 1...Se7!
- threat
- 1.Qe5+?
- 1...Sxe5
- 2.Bf8#
- 1...Bxe5!
- 1...Sxe5
- 1.Qf5?
- threat
- 2.Qxd7#
- 1...Sf8+
- 2.Bxf8#
- 1...Rxc6
- 2.Qc5#
- 1...Bxc6
- 2.Qd3#
- 2.Qd5#
- 1...dxc6
- 2.Rd8#
- 2.Qe6#
- 1...Se5
- 2.Bf8#
- 1...Se7!
- threat
- 1.c7+?
- 1...Rc6
- 2.Qc5#
- 2.c8S#
- 1...Bc6
- 2.Qd5#
- 2.c8S#
- 1...axb6!
- 1...Rc6
- 1.Bf4+?
- Keys
- 1.Qxh3!
- threat
- 2.Qxd7#
- 1...Sf8+
- 2.Bxf8#
- 1...Rxc6
- 2.Qa3#
- 1...Bxc6
- 2.Qd3#
- 1...dxc6
- 2.Qe6#
- 1...Se7
- 2.Qxh2#
- 1...Se5
- 2.Bf8#
- threat
- 1.Qxh3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 10
- Sets
- R(a);N_GUARD::QAB1(A)
- R(a);N_GUARD::QAB1(A),XR(a)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAB1(A)
- B(b);N_GUARD::QAR1(A),XB(b)
- B(b);N_GUARD,P_SPINB(b),XP(D)::QAR1(A)
- S(f);N_GUARD::B(F)
- S(f);CHECK,N_GUARD::B(F),XS(f)
- P(h);OGATEB,P_SPINP(h),XP(D)::R(H)
- Tries
- Try
- B(F);CHECK
- Vars
- S(f);N_GUARD,XB(F)::QAB1(A)
- S(f);N_GUARD,P_SPINS(f)::QAB1(A),XS(f)
- Refutation
- B(c);XB(F)
- Try
- B(F);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::B(F),XS(f)
- Refutation
- S(f);CHECK,XB(F)
- Try
- R(H);P_PINP(h)
- Threat
- R1(H),XP(h)
- Vars
- S(f);CHECK,N_GUARD::B(F),XS(f)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAB1(A)
- B(b);N_GUARD,P_SPINB(b),XP(D)::QAR1(A)
- S(f);N_GUARD::B(F)
- Refutation
- P(g);XR(C)
- Try
- Q(A);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(A),XB(b)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A),XP(h)
- Vars
- S(f);CHECK,N_GUARD::B(F),XS(f)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAB(A)
- B(b);N_GUARD,P_SPINB(b),XP(D)::QAR2(A)
- P(h);N_GUARD,P_SPINP(h),XP(D)::QAR1(A)
- S(f);N_GUARD::B(F)
- Refutation
- S(f);
- Try
- Q(A);CHECK
- Vars
- S(f);XQ(A)::B(F)
- Refutation
- B(c);XQ(A)
- Try
- Q(A);
- Threat
- QAR1(A),XP(h)
- Vars
- S(f);CHECK,N_GUARD::B(F),XS(f)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAB1(A)
- S(f);N_GUARD::B(F)
- Refutation
- S(f);
- Try
- P(D);CHECK
- Refutation
- P(g);XR(C)
- Try
- Actual
- Q(A);XP(d)
- Threat
- QAR1(A),XP(h)
- Vars
- S(f);CHECK,N_GUARD::B(F),XS(f)
- R(a);N_GUARD,P_SPINR(a),XP(D)::QAB(A)
- B(b);N_GUARD,P_SPINB(b),XP(D)::QAR(A)
- P(h);N_GUARD,P_SPINP(h),XP(D)::QAR1(A)
- S(f);N_GUARD::QAB(A),XB(c)
- S(f);N_GUARD::B(F)
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).