MESON Chess Problem Database
Problem Display
PID: 28217 (3R4/3B1p2/Kp6/6p1/1B2P1qb/1pRNp2r/3k2P1/3b2Q1 w - - 0 1)
Stocchi, Ottavio
1st Comm., Schackspelaren, 1934
#2
9 + 10
| 3100 | Selected Stocchi (I) | 2001 |
| 14475 | Mat Plus Review | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Rg3
- 2.Qe1#
- 1...Be2
- 2.Qc1#
- 1...Be1
- 2.Qxe1#
- 1...Rg3
- Tries
- 1.Sc1?
- threat
- 2.Bxg4#
- 2.Bf5#
- 2.Be6#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qe2+
- 2.Rc4#
- 1...Be2+
- 2.Rc4#
- 1...Qxd7
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Rxd7#
- 1...Qxg2
- 2.Bxh3#
- 2.Ba4#
- 2.Bg4#
- 2.Bb5#
- 2.Bf5#
- 2.Bc6#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qxe4
- 2.Rc4#
- 1...Qf3
- 2.Bxh3#
- 2.Ba4#
- 2.Bg4#
- 2.Bb5#
- 2.Bf5#
- 2.Bc6#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qf5
- 2.Bxf5#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qh5
- 2.Bxh3#
- 2.Ba4#
- 2.Bg4#
- 2.Bb5#
- 2.Bf5#
- 2.Bc6#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qe6
- 2.Bxe6#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qg3
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Qf4
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Bc2
- 2.Rxb3#
- 2.Rd3#
- 2.Rxe3#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Bg3
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxe3#
- 1...f5
- 2.Ba4#
- 2.Bb5#
- 2.Bxf5#
- 2.Bc6#
- 2.Be6#
- 2.Bc8#
- 2.Be8#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...e2!
- threat
- 1.Bxg4?
- threat
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxd1#
- 1...Rf3
- 2.Sc1#
- 2.Sf4#
- 1...Bf3
- 2.Sc1#
- 2.Sf4#
- 1...Rh1
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Bc2
- 2.Rxb3#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qc1#
- 1...Be2
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qc1#
- 1...Be1
- 2.Sc1#
- 2.Sxe1#
- 2.Sb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxe1#
- 1...Bf2
- 2.Sc1#
- 2.Se1#
- 2.Sb2#
- 2.Sxf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxd1#
- 1...Bg3
- 2.Sf4#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxd1#
- 1...b2
- 2.Sc1#
- 2.Se1#
- 2.Sxb2#
- 2.Sf2#
- 2.Sf4#
- 2.Sc5#
- 2.Se5#
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 2.Qxd1#
- 1...e2
- 2.Rc1#
- 2.Rc4#
- 2.Rc5#
- 2.Rc6#
- 2.Rc7#
- 2.Rcc8#
- 1...Bxg4!
- threat
- 1.Rc1+?
- 1...Ke2
- 2.Qxd1#
- 1...Kxd3!
- 1...Ke2
- 1.Rxb3+?
- 1...Ke2
- 2.Sc1#
- 1...Kc2!
- 1...Ke2
- 1.Rc4+?
- 1...Ke2
- 2.Sc1#
- 1...Kxd3!
- 1...Ke2
- 1.Rc5+?
- 1...Ke2
- 2.Sc1#
- 1...Kxd3!
- 1...Ke2
- 1.Rc6+?
- 1...Ke2
- 2.Sc1#
- 1...Kxd3!
- 1...Ke2
- 1.Rc7+?
- 1...Ke2
- 2.Sc1#
- 1...Kxd3!
- 1...Ke2
- 1.Rcc8+?
- 1...Ke2
- 2.Sc1#
- 1...Kxd3!
- 1...Ke2
- 1.Sc1?
- Keys
- 1.Sb2!
- threat
- 2.Bxg4#
- 1...Qe2+
- 2.Rc4#
- 1...Be2+
- 2.Rc4#
- 1...Ke2
- 2.Bb5#
- 1...Qxd7
- 2.Qxd1#
- 1...Qxg2
- 2.Bg4#
- 2.Bb5#
- 2.Qxd1#
- 1...Qxe4
- 2.Qxd1#
- 1...Qf3
- 2.Bb5#
- 1...Qf5
- 2.Qxd1#
- 1...Qh5
- 2.Bg4#
- 2.Bb5#
- 1...Qe6
- 2.Qxd1#
- 1...Qg3
- 2.Qxd1#
- 1...Qf4
- 2.Qxd1#
- 1...Rf3
- 2.Qxd1#
- 1...Bc2
- 2.Rxe3#
- 1...Bf3
- 2.Qxe3#
- 1...Bg3
- 2.Qxe3#
- 1...e2
- 2.Sc4#
- 1...f5
- 2.Bb5#
- threat
- 1.Sb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 15
- REMOVED MATES = 2
- Sets
- R(e);S_CUTB(g)::QAB1(A)
- B(a);OGATE,P_PINS(D),SBLOCK::QAB1(A)
- B(g);N_GUARD::QAB1(A),XB(g)
- Tries
- Try
- S(D);
- Threat
- DUALS(8)
- Vars
- Q(f);CHECK::B(E)+R(C)
- B(a);CHECK::B(E)+R(C)
- Q(f);XP(F)::B(E)+R(C)
- Refutation
- P(d);
- Try
- B(H);XQ(f)
- Threat
- DUALS(14)
- Refutation
- B(a);XB(H)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::QAB1(A),XB(a)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- R(C);CHECK,XP(c)
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- R(C);CHECK
- Vars
- K(b);P-FLIGHT::S(D)
- Refutation
- K(b);P-FLIGHT,XS(D)
- Try
- Actual
- S(D);
- Threat
- R(I)+B(H),XQ(f)
- Vars
- Q(f);CHECK,SBLOCK::B(E)+R(C)
- B(a);CHECK,SBLOCK::B(E)+R(C)
- K(b);P-FLIGHT::B(H)
- Q(f);N_GUARD,P_SPINQ(f),XB(H)::QAR1(A),XB(a)
- Q(f);N_GUARD,XP(F)::QAR1(A),XB(a)
- Q(f);N_GUARD::R(I)+B(H)
- Q(f);N_GUARD::QAR1(A),XB(a)
- R(e);S_CUTQ(f)::QAR1(A),XB(a)
- B(a);SBLOCK::B(E)+R(C),XP(d)
- B(a);S_CUTR(e)::QAB1(A),XP(d)
- B(g);S_CUTR(e)::QAB1(A),XP(d)
- P(d);SBLOCK::S(D)
- P(j);S_CUTQ(f)::R(I)+B(H)
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