MESON Chess Problem Database
Problem Display
PID: 18101 (8/N5p1/KPprp1P1/3p4/pQpkBPp1/Bn2RbN1/4pP2/b3n3 w - - 0 1)
Stocchi, Ottavio
2nd Prize, Probleemblad, 1953
#2
11 + 14
| 5862 | An ABC of Chess Problems | 1970 |
| 14744 | Nuova Antologia dei Problemisti Italiani | 1992 |
| 5407 | Selected Stocchi (II) | 2004 |
| 133 | The Problemist Supplement | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Rd7
- 2.Sxc6#
- 1...Rd8
- 2.Sxc6#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bh1
- 2.Sxe2#
- 1...Bg2
- 2.Sxe2#
- 1...Bxe4
- 2.Sxe2#
- 1...Sc2
- 2.Rd3#
- 1...Sg2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...Sc5+
- 2.Qxc5#
- 1...dxe4
- 2.Qxd6#
- 1...c5
- 2.Sb5#
- 1...e5
- 2.Sf5#
- 1...Rd7
- Tries
- 1.Bb1?
- 1...Sc5+
- 2.Qxc5#
- 1...Rd7
- 2.Sxc6#
- 1...Rd8
- 2.Sxc6#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bh1
- 2.Sxe2#
- 1...Bg2
- 2.Sxe2#
- 1...Be4
- 2.Sxe2#
- 1...Sg2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...c5
- 2.Sb5#
- 1...e5
- 2.Sf5#
- 1...Sc2!
- 1...Sc5+
- 1.Bc2?
- 1...Sc5+
- 2.Qxc5#
- 1...Rd7
- 2.Sxc6#
- 1...Rd8
- 2.Sxc6#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bh1
- 2.Sxe2#
- 1...Bg2
- 2.Sxe2#
- 1...Be4
- 2.Sxe2#
- 1...Sg2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...c5
- 2.Sb5#
- 1...e5
- 2.Sf5#
- 1...Sxc2!
- 1...Sc5+
- 1.Bxf3?
- threat
- 2.Sxe2#
- 1...Sc5+
- 2.Qxc5#
- 1...Sc1
- 2.Qc5#
- 1...gxf3!
- threat
- 1.Bf5?
- 1...Sc5+
- 2.Qxc5#
- 1...exf5
- 2.Sxf5#
- 1...Rd7
- 2.Sxc6#
- 1...Rd8
- 2.Sxc6#
- 1...Bb2
- 2.Bxb2#
- 1...Bc3
- 2.Qxc3#
- 1...Bh1
- 2.Sxe2#
- 1...Bg2
- 2.Sxe2#
- 1...Be4
- 2.Sxe2#
- 1...Sc2
- 2.Rd3#
- 1...Sg2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...c5
- 2.Sb5#
- 1...e5!
- 1...Sc5+
- 1.Rxb3?
- threat
- 2.Qc5#
- 1...Sd3
- 2.Rxd3#
- 1...c5
- 2.Sb5#
- 2.Qxc5#
- 1...axb3!
- threat
- 1.Qxd6?
- threat
- 2.Sxc6#
- 2.Qe5#
- 1...Sc5+
- 2.Bxc5#
- 2.Qxc5#
- 1...c3
- 2.Qb4#
- 1...Sa5
- 2.Bc5#
- 2.Qc5#
- 2.Qe5#
- 1...c5
- 2.Sb5#
- 2.Sc6#
- 2.Qe5#
- 1...e5
- 2.Sf5#
- 2.Sxc6#
- 2.Qxe5#
- 1...Sd3!
- threat
- 1.b7?
- 1...Sc5+
- 2.Qxc5#
- 1...Bxe4
- 2.Sxe2#
- 1...dxe4
- 2.Qxd6#
- 1...Bb2
- 2.Bxb2#
- 1...Rd7
- 2.Sxc6#
- 1...Rd8
- 2.Sxc6#
- 1...Bc3
- 2.Qxc3#
- 1...Bh1
- 2.Sxe2#
- 1...Bg2
- 2.Sxe2#
- 1...Sc2
- 2.Rd3#
- 1...Sg2
- 2.Rd3#
- 1...Sd3
- 2.Rxd3#
- 1...Sc1
- 2.Qc5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- 1...e5
- 2.Sf5#
- 1...c5+!
- 1...Sc5+
- 1.Bb1?
- Keys
- 1.Bxd5!
- threat
- 2.Qxc4#
- 1...Sc5+
- 2.Qxc5#
- 1...Kxd5
- 2.Qxd6#
- 1...Rxd5
- 2.Sxc6#
- 1...Bxd5
- 2.Sxe2#
- 1...cxd5
- 2.Sb5#
- 1...exd5
- 2.Sf5#
- 1...Sd2
- 2.Qc5#
- 1...Sa5
- 2.Qc5#
- threat
- 1.Bxd5!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 14
- Sets
- R(l);N_GUARD::S(K),XP(k)
- B(a);N_GUARD::B(B),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(D),XP(c)
- B(e);N_GUARD,XB(F)::S(D),XP(c)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- S(d);N_GUARD::QAB1(E)
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- P(j);OGATEB,XB(F)::QAR2(E),XR(l)
- P(k);N_GUARD,P_PINP(I)::S(K)
- P(m);N_GUARD::S(D)
- Tries
- Try
- B(F);
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- R(l);N_GUARD::S(K),XP(k)
- B(a);N_GUARD::B(B),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(D),XP(c)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- S(d);N_GUARD::QAB1(E)
- P(k);N_GUARD,P_PINP(I)::S(K)
- P(m);N_GUARD::S(D)
- Refutation
- S(b);
- Try
- B(F);
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- R(l);N_GUARD::S(K),XP(k)
- B(a);N_GUARD::B(B),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(D),XP(c)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- S(d);N_GUARD::QAB1(E)
- P(k);N_GUARD,P_PINP(I)::S(K)
- P(m);N_GUARD::S(D)
- Refutation
- S(b);XB(F)
- Try
- B(F);XB(e)
- Threat
- S(D),XP(c)
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- S(d);N_GUARD::QAB1(E)
- Refutation
- P(i);XB(F)
- Try
- B(F);
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- P(m);XB(F)::S(D),XP(m)
- R(l);N_GUARD::S(K),XP(k)
- B(a);N_GUARD::B(B),XB(a)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(D),XP(c)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- S(d);N_GUARD::QAB1(E)
- P(k);N_GUARD,P_PINP(I)::S(K)
- Refutation
- P(m);
- Try
- R(C);XS(d)
- Threat
- QAB1(E)
- Vars
- S(b);N_GUARD::R1(C),XS(b)
- Refutation
- P(f);XR(C)
- Try
- Q(E);N_PINP(g),P_PINP(j),XR(l)
- Threat
- DUALS(2)
- Vars
- P(g);OGATEB::QAR2(E)
- Refutation
- S(b);
- Try
- P(I);
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- B(e);N_GUARD,XB(F)::S(D),XP(c)
- P(j);OGATEB,XB(F)::QAR2(E),XR(l)
- B(a);N_GUARD::B(B),XB(a)
- R(l);N_GUARD::S(K),XP(k)
- B(a);N_GUARD::QAB1(E),XB(a)
- B(e);N_GUARD::S(D),XP(c)
- S(b);N_GUARD::R1(C)
- S(b);N_GUARD::R1(C),XS(b)
- S(d);N_GUARD::QAB1(E)
- P(m);N_GUARD::S(D)
- Refutation
- P(k);CHECK
- Try
- Actual
- B(F);XP(j)
- Threat
- QAR1(E),XP(g)
- Vars
- S(d);CHECK,N_GUARD::QAB1(E),XS(d)
- K(h);N_SPINP(g),OGATEB,P-FLIGHT,XB(F)::QAR1(E),XR(l)
- R(l);N_GUARD,SBLOCK,XB(F)::S(K),XP(k)
- B(e);N_GUARD,SBLOCK,XB(F)::S(D),XP(c)
- P(k);N_GUARD,P_PINP(I),SBLOCK,XB(F)::S(K)
- P(m);N_GUARD,SBLOCK,XB(F)::S(D)
- S(d);N_GUARD::QAB1(E)
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