MESON Chess Problem Database
Problem Display
PID: 110738 (8/B1p1Q1p1/1rp2pP1/3p1R2/1pPk1P2/Rn3P2/2P1B1p1/nN2N1Kb w - - 0 1)
Stocchi, Ottavio
2nd Comm., BCPS, 1933
#2
13 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxc2
- 2.Sxc2#
- 1...Sc1
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sa5
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...bxa3
- 2.c3#
- 1...dxc4
- 2.Qe4#
- 1...c5
- 2.Rxd5#
- 1...Sxc2
- Tries
- 1.Bxb6+?
- 1...Sc5
- 2.Bxc5#
- 2.Qxc5#
- 2.Qe3#
- 1...c5
- 2.Rxd5#
- 1...cxb6!
- 1...Sc5
- 1.Rxb3?
- threat
- 2.Qe3#
- 1...Sxc2
- 2.Sxc2#
- 1...Sxb3!
- threat
- 1.Ra5?
- 1...Sxc2
- 2.Sxc2#
- 1...dxc4
- 2.Qe4#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sc5
- 2.Qxc5#
- 1...c5
- 2.Rxd5#
- 1...Sxa5!
- 1...Sxc2
- 1.Rh5?
- 1...Sxc2
- 2.Sxc2#
- 1...bxa3
- 2.c3#
- 1...dxc4
- 2.Qe4#
- 1...Sc1
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sa5
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...c5
- 2.Rxd5#
- 1...f5!
- 1...Sxc2
- 1.Rxf6?
- 1...Sxc2
- 2.Sxc2#
- 1...bxa3
- 2.c3#
- 1...dxc4
- 2.Qe5#
- 1...Sc1
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sa5
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 2.Qe5#
- 1...c5
- 2.Qe5#
- 1...gxf6!
- 1...Sxc2
- 1.cxb3?
- 1...Sxb3
- 2.Sc2#
- 1...dxc4
- 2.Qc5#
- 2.Qe4#
- 1...Sc2
- 2.Sxc2#
- 1...c5
- 2.Rxd5#
- 1...bxa3!
- 1...Sxb3
- 1.cxd5?
- 1...Sxc2
- 2.Sxc2#
- 1...bxa3
- 2.c3#
- 1...Sc1
- 2.Qxb4#
- 2.Qe3#
- 1...Sd2
- 2.Qe3#
- 1...Sa5
- 2.Qe3#
- 1...Sc5
- 2.Qe3#
- 1...c5
- 2.Qe4#
- 1...cxd5!
- 1...Sxc2
- 1.Bxb6+?
- Keys
- 1.Qxb4!
- 1...Ke3
- 2.Qd2#
- 1...Sxc2
- 2.Sxc2#
- 1...dxc4
- 2.Qc3#
- 1...Sc1
- 2.cxd5#
- 1...Sd2
- 2.Rd3#
- 1...Sa5
- 2.Rd3#
- 1...Sc5
- 2.Qc3#
- 1...c5
- 2.Qc3#
- 1...Ke3
- 1.Qxb4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- S(a);XP(D)::S(B),XS(a)
- S(d);::QAB1(M)
- S(d);N_SPINR(h),SBLOCK::QAB1(M)
- P(e);N_GUARD,XR(F)::P(D)
- P(g);N_GUARD,XP(H)::QAR1(M)
- P(i);N_GUARD,N_SPINR(h)::R1(J),XP(g)
- Tries
- Try
- B(L);CHECK,XR(h)
- Vars
- P(i);P_SPINP(i)::R1(J),XP(g)
- Refutation
- P(k);XB(L)
- Try
- R(F);XS(d)
- Threat
- QAB1(M)
- Vars
- S(a);XP(D)::S(B),XS(a)
- Refutation
- S(a);XR(F)
- Try
- R(F);
- Vars
- S(a);XP(D)::S(B),XS(a)
- P(g);N_GUARD,XP(H)::QAR1(M)
- S(d);N_GUARD::QAB1(M)
- S(d);N_GUARD,N_SPINR(h)::QAB1(M),XS(d)
- P(i);N_GUARD,N_SPINR(h)::R1(J),XP(g)
- Refutation
- S(d);XR(F)
- Try
- R(J);
- Vars
- S(a);XP(D)::S(B),XS(a)
- P(e);N_GUARD,XR(F)::P(D)
- P(g);N_GUARD,XP(H)::QAR1(M)
- S(d);::QAB1(M)
- S(d);N_SPINR(h),SBLOCK::QAB1(M)
- P(i);N_GUARD,N_SPINR(h)::R1(J),XP(g)
- Refutation
- P(j);
- Try
- R(J);XP(j)
- Vars
- S(a);XP(D)::S(B),XS(a)
- P(e);N_GUARD,XR(F)::P(D)
- P(g);XP(H)::QAB1(M)
- S(d);::QAB1(M)
- P(i);N_SPINR(h),SBLOCK::QAB1(M)
- Refutation
- P(l);XR(J)
- Try
- P(D);XS(d)
- Vars
- S(a);N_GUARD,XP(D)::S(B)
- S(a);N_GUARD::S(B),XS(a)
- P(i);N_GUARD,N_SPINR(h)::R1(J),XP(g)
- Refutation
- P(e);XR(F)
- Try
- P(H);XP(g)
- Vars
- S(a);XP(D)::S(B),XS(a)
- P(e);N_GUARD,XR(F)::P(D)
- S(d);::QAB1(M)
- S(d);N_SPINR(h),SBLOCK::QAB1(M)
- P(i);N_SPINR(h),SBLOCK::QAR1(M)
- Refutation
- P(i);XP(H)
- Try
- Actual
- Q(M);XP(e)
- Vars
- K(f);P_SPINS(d),S_FLIGHT::QAB1(M)
- S(a);XP(D)::S(B),XS(a)
- P(g);P_SPINP(g),XP(H)::QAB1(M)
- S(d);::QAR(M)+P(H),XP(g)
- S(d);OGATE::R1(F)
- S(d);N_SPINR(h),SBLOCK::QAB1(M)
- P(i);N_SPINR(h),SBLOCK::QAB1(M)
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).