MESON Chess Problem Database
Problem Display
PID: 53077 (b2B2B1/Rn5p/2P2R2/p3k3/P4NP1/2P5/1nrNp3/KQ6 w - - 0 1)
Stocchi, Ottavio
Chess Life, 1953
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sf3#
- 1...Rxd2
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sxa4
- 2.Sd3#
- 1...Sc4
- 2.Sd3#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Rc1
- Tries
- 1.Sc4+?
- 1...Ke4
- 2.Bd5#
- 2.Qh1#
- 1...Sxc4!
- 1...Ke4
- 1.Bc7+?
- 1...Sd6
- 2.Rf5#
- 1...Kxf6!
- 1...Sd6
- 1.Be7?
- threat
- 2.Rf5#
- 1...Rxc3
- 2.Qe4#
- 1...Sd6!
- threat
- 1.Bd5?
- threat
- 2.Sf3#
- 1...Rxd2
- 2.Qe4#
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...e1S
- 2.Qxe1#
- 1...Sxd8!
- threat
- 1.Bxh7?
- threat
- 2.Sf3#
- 1...Rxd2
- 2.Qe4#
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...e1S
- 2.Qxe1#
- 1...Sxd8!
- threat
- 1.Rxa5+?
- 1...Sc5
- 2.Rxc5#
- 1...Sxa5!
- 1...Sc5
- 1.Rxb7?
- threat
- 2.Rb5#
- 1...Rxd2
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...Sxa4
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Bxb7!
- threat
- 1.cxb7?
- threat
- 2.Rxa5#
- 2.b8Q#
- 2.b8B#
- 1...Rxd2
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...Sxa4
- 2.Sd3#
- 2.b8Q#
- 2.b8B#
- 1...e1Q
- 2.Rxa5#
- 2.Qxe1#
- 2.b8Q#
- 2.b8B#
- 1...e1S
- 2.Rxa5#
- 2.Qxe1#
- 2.b8Q#
- 2.b8B#
- 1...e1B
- 2.Rxa5#
- 2.Qxe1#
- 2.b8Q#
- 2.b8B#
- 1...e1R
- 2.Rxa5#
- 2.Qxe1#
- 2.b8Q#
- 2.b8B#
- 1...Rc1
- 2.Sf3#
- 2.Rxa5#
- 2.b8Q#
- 2.b8B#
- 1...Sd1
- 2.Sd3#
- 2.Rxa5#
- 2.Qb5#
- 2.b8Q#
- 2.b8B#
- 1...Sd3
- 2.Sxd3#
- 2.b8Q#
- 2.b8B#
- 1...Sc4
- 2.Sd3#
- 2.Qb5#
- 1...h5
- 2.Sg6#
- 2.Rxa5#
- 2.b8Q#
- 2.b8B#
- 1...h6
- 2.Sg6#
- 2.Rxa5#
- 2.b8Q#
- 2.b8B#
- 1...Bxb7!
- threat
- 1.Sc4+?
- Keys
- 1.g5!
- 1...Rxd2
- 2.Qf5#
- 1...Rxc3
- 2.Qe4#
- 1...Sxa4
- 2.Sd3#
- 1...Sxd8
- 2.Rxa5#
- 1...e1Q
- 2.Qxe1#
- 1...e1S
- 2.Qxe1#
- 1...e1B
- 2.Qxe1#
- 1...e1R
- 2.Qxe1#
- 1...Sc5
- 2.Bc7#
- 1...Rc1
- 2.Sf3#
- 1...Sd1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sc4
- 2.Sd3#
- 1...Sd6
- 2.Re7#
- 1...h5
- 2.Sg6#
- 1...h6
- 2.Sg6#
- 1...Rxd2
- 1.g5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(b);P_PINQ(B)::S(C)
- R(b);OGATE,XS(C)::QAR1(B)
- R(b);OGATE,XP(D)::QAR1(B)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- S(a);N_GUARD,XP(E)::S(F)
- P(c);OGATEB,P_PINQ(B)::QAR(B),XQ(c)
- P(c);OGATEB::QAR(B),XS(c)
- P(c);OGATEB::QAR(B),XB(c)
- P(c);OGATEB,P_PINQ(B)::QAR(B),XR(c)
- P(g);N_GUARD::S(F)
- Tries
- Try
- S(C);CHECK
- Refutation
- S(a);XS(C)
- Try
- B(K);CHECK
- Vars
- S(f);P_SPINS(f)::R1(I)
- Refutation
- K(e);S_FLIGHT,XR(I)
- Try
- B(K);
- Threat
- R1(I)
- Vars
- R(b);OGATE,XP(D)::QAR1(B)
- Refutation
- S(f);
- Try
- B(L);
- Threat
- S(C)
- Vars
- R(b);OGATE,XP(D)::QAR1(B)
- P(c);OGATEB::QAR(B),XS(c)
- Refutation
- S(f);XB(K)
- Try
- B(L);XP(g)
- Threat
- S(C)
- Vars
- R(b);OGATE,XP(D)::QAR1(B)
- P(c);OGATEB::QAR(B),XS(c)
- Refutation
- S(f);XB(K)
- Try
- R(J);CHECK,XP(d)
- Vars
- S(f);N_GUARD,P_SPINS(f)::R(J),XS(f)
- Refutation
- S(f);XR(J)
- Try
- R(J);XS(f)
- Threat
- R(J)
- Vars
- R(b);OGATE,XS(C)::QAR1(B)
- R(b);OGATE,XP(D)::QAR1(B)
- S(a);N_GUARD,XP(E)::S(F)
- S(a);N_GUARD::S(F),XS(a)
- Refutation
- B(h);XR(J)
- Try
- P(H);XS(f)
- Threat
- DUALS(3)
- Vars
- R(b);OGATE,XS(C)::QAR1(B)
- R(b);OGATE,XP(D)::QAR1(B)
- Refutation
- B(h);XP(H)
- Try
- Actual
- P(G);
- Vars
- R(b);OGATE,XS(C)::QAR1(B)
- R(b);OGATE,XP(D)::QAR1(B)
- S(a);N_GUARD,XP(E)::S(F)
- S(f);N_GUARD,XB(K)::R(J),XP(d)
- P(c);OGATEB,P_PINQ(B)::QAR(B),XQ(c)
- P(c);OGATEB::QAR(B),XS(c)
- P(c);OGATEB::QAR(B),XB(c)
- P(c);OGATEB,P_PINQ(B)::QAR(B),XR(c)
- S(f);N_GUARD::B(K)
- R(b);P_PINQ(B)::S(C)
- S(a);N_GUARD::S(F)
- S(a);N_GUARD::S(F),XS(a)
- S(f);OGATE::R(J)
- P(g);N_GUARD::S(F)
Developed and maintained by Brian Stephenson.
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