MESON Chess Problem Database
Problem Display
PID: 71220 (2B5/Q4K2/3p4/3PkbRn/2P2p2/3P1Rn1/1b1B4/8 w - - 0 1)
Mendes de Moraes Filho, Feliciano
Il Due Mosse, 1959
#2
9 + 7
SOLUTION
- SOUND
- Sets
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qe7#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...Ba1
- Tries
- 1.Ke7?
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...Bd4!
- 1...Ba1
- 1.Ke8?
- 1...Sg7+
- 2.Qxg7#
- 1...Kf6
- 2.Qe7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qe7#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6+!
- 1...Sg7+
- 1.Be3?
- threat
- 2.Qe7#
- 1...Sg7
- 2.Bxf4#
- 1...fxe3!
- threat
- 1.Bxf5?
- 1...Sf6
- 2.Bxf4#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 2.d4#
- 1...Ba3
- 2.Bc3#
- 2.d4#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qe7#
- 1...Sf1
- 2.Bh3#
- 2.Be4#
- 2.Bg4#
- 2.Be6#
- 2.Bg6#
- 2.Bd7#
- 2.Bh7#
- 2.Bc8#
- 1...Sh1
- 2.Bh3#
- 2.Be4#
- 2.Bg4#
- 2.Be6#
- 2.Bg6#
- 2.Bd7#
- 2.Bh7#
- 2.Bc8#
- 1...Se2
- 2.Bh3#
- 2.Be4#
- 2.Bg4#
- 2.Be6#
- 2.Bg6#
- 2.Bd7#
- 2.Bh7#
- 2.Bc8#
- 1...Se4
- 2.Bxe4#
- 1...Sg7
- 2.Bxf4#
- 1...Sxf5!
- 1...Sf6
- 1.Be6?
- 1...Sf6
- 2.Bxf4#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sg7
- 2.Bxf4#
- 1...Bd4!
- 1...Sf6
- 1.Bd7?
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...Bd4!
- 1...Ba1
- 1.Rf1?
- 1...Sxf1
- 2.Rxf5#
- 1...Bd4
- 2.Qe7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sh1
- 2.Re1#
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...f3!
- 1...Sxf1
- 1.Rf2?
- 1...Bd4
- 2.Qe7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Re2#
- 2.Rxf5#
- 1...Se2
- 2.Rxe2#
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...f3!
- 1...Bd4
- 1.Re3+?
- 1...Se4
- 2.Rxe4#
- 2.Rxf5#
- 1...fxe3!
- 1...Se4
- 1.Rxh5?
- threat
- 2.Bxf4#
- 1...Bc1
- 2.Bc3#
- 1...Se2
- 2.Rxf5#
- 1...Sxh5!
- threat
- 1.Qg1?
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Bxf4#
- 1...Bd4!
- 1...Ba1
- 1.Qe3+?
- 1...Se4
- 2.Rxf5#
- 2.Qxe4#
- 1...fxe3!
- 1...Se4
- 1.d4+?
- 1...Bxd4
- 2.Qe7#
- 1...Ke4!
- 1...Bxd4
- 1.Ke7?
- Keys
- 1.Kf8!
- 1...Kf6
- 2.Qe7#
- 1...Ba1
- 2.Qxa1#
- 1...Bc1
- 2.Bc3#
- 1...Ba3
- 2.Bc3#
- 1...Bc3
- 2.Bxc3#
- 1...Bd4
- 2.Qe7#
- 1...Sf1
- 2.Rxf5#
- 1...Sh1
- 2.Rxf5#
- 1...Se2
- 2.Rxf5#
- 1...Se4
- 2.Rxf5#
- 1...Sf6
- 2.Bxf4#
- 1...Sg7
- 2.Qxg7#
- 1...Kf6
- 1.Kf8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- B(a);SBLOCK::QAR2(G)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- B(a);
- Try
- K(H);S_FLIGHT
- Vars
- S(f);CHECK,N_GUARD::QAB(G),XS(f)
- K(d);N_SPINB(e),S_FLIGHT::QAB1(G)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- B(a);SBLOCK::QAR2(G)
- S(b);N_GUARD::R1(F),XB(e)
- Refutation
- S(f);CHECK
- Try
- B(A);
- Threat
- QAR2(G)
- Vars
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- P(c);XB(A)
- Try
- B(I);XB(e)
- Vars
- S(f);N_GUARD::B(A),XP(c)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A),XB(a)
- B(a);SBLOCK::QAR2(G)
- S(b);N_GUARD::R(F)+B(I),XS(b)
- Refutation
- S(b);P_SPINS(b),XB(I)
- Try
- B(I);
- Vars
- S(f);N_GUARD::B(A),XP(c)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- Refutation
- B(a);
- Try
- B(I);
- Vars
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- B(a);
- Try
- R(C);
- Vars
- S(b);N_GUARD,XR(C)::R1(F),XB(e)
- B(a);SBLOCK::QAR2(G)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- P(c);
- Try
- R(C);
- Vars
- B(a);SBLOCK::QAR2(G)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- P(c);
- Try
- R(C);CHECK
- Refutation
- P(c);XR(C)
- Try
- R(F);XS(f)
- Threat
- B(A),XP(c)
- Vars
- B(a);N_GUARD::B(A)
- S(b);N_GUARD::R1(F),XB(e)
- Refutation
- S(b);N_SPINB(e),XR(F)
- Try
- Q(G);
- Vars
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD::B(A),XP(c)
- Refutation
- B(a);
- Try
- Q(G);CHECK
- Refutation
- P(c);XQ(G)
- Try
- P(B);CHECK
- Vars
- B(a);SBLOCK,XP(B)::QAR2(G)
- Refutation
- K(d);N_SPINB(e),P-FLIGHT
- Try
- Actual
- K(H);P-FLIGHT
- Vars
- K(d);N_SPINB(e),S_FLIGHT::QAB1(G)
- B(a);OGATEB::QAB(G),XB(a)
- B(a);N_GUARD::B(A)
- B(a);N_GUARD::B(A),XB(a)
- B(a);SBLOCK::QAR2(G)
- S(b);N_GUARD::R1(F),XB(e)
- S(f);N_GUARD,SBLOCK::B(A),XP(c)
- S(f);N_GUARD::QAB(G),XS(f)
Developed and maintained by Brian Stephenson.
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