MESON Chess Problem Database
Problem Display
PID: 239146 (1r1N1R1K/pb5p/7B/1Q3n1r/2P1k1p1/R3P3/2P1B3/8 w - - 0 1)
Erokhin, Vladimir Alekseevich
Sachove umeni (Ceskoslovensky sach), 1988
#2
10 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Qxf5#
- 1...Rh2
- 2.Qxf5#
- 1...Rh3
- 2.Qxf5#
- 1...Rh4
- 2.Qxf5#
- 1...Rxh6
- 2.Qxf5#
- 1...Bd5
- 2.Qxd5#
- 1...Ba6
- 2.Qd5#
- 1...Bc8
- 2.Qd5#
- 1...Sxe3
- 2.Rf4#
- 1...Sg3
- 2.Bd3#
- 2.Rf4#
- 1...Sd4
- 2.Bd3#
- 2.Rf4#
- 1...Sh4
- 2.Bd3#
- 2.Rf4#
- 1...Sd6
- 2.Bd3#
- 2.Rf4#
- 1...Sxh6
- 2.Rf4#
- 1...Se7
- 2.Bd3#
- 2.Rf4#
- 1...Sg7
- 2.Bd3#
- 2.Rf4#
- 1...Rh1
- Tries
- 1.Bf1?
- threat
- 2.Bg2#
- 1...Sxe3
- 2.Rf4#
- 1...Bd5
- 2.Qxd5#
- 1...Rh2
- 2.Qxf5#
- 1...Rh3
- 2.Qxf5#
- 1...Sd4
- 2.Bd3#
- 2.Rf4#
- 1...Sh4
- 2.Bd3#
- 2.Rf4#
- 1...Kf3!
- threat
- 1.Bg5?
- threat
- 2.Qxf5#
- 1...Sxe3
- 2.Rf4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc8
- 2.Qd5#
- 1...Sg3
- 2.Bd3#
- 2.Rf4#
- 2.Re8#
- 2.Qe8#
- 1...Sd4
- 2.Bd3#
- 2.Rf4#
- 1...Sh4
- 2.Bd3#
- 2.Rf4#
- 2.Re8#
- 2.Qe8#
- 1...Sd6
- 2.Bd3#
- 2.Rf4#
- 1...Sh6
- 2.Bd3#
- 2.Rf4#
- 2.Re8#
- 2.Qe8#
- 1...Se7
- 2.Bd3#
- 2.Rf4#
- 1...Sg7
- 2.Bd3#
- 2.Rf4#
- 1...Rxg5!
- threat
- 1.Ra5?
- threat
- 2.Qe5#
- 1...Sxe3
- 2.Rf4#
- 1...Bd5
- 2.Qxd5#
- 1...Sg3
- 2.Bd3#
- 1...Sd4
- 2.Bd3#
- 1...Sh4
- 2.Bd3#
- 1...Sd6
- 2.Bd3#
- 1...Se7
- 2.Bd3#
- 1...Sg7
- 2.Bd3#
- 1...Sxh6!
- threat
- 1.Rf6?
- threat
- 2.Re6#
- 1...Rxh6
- 2.Qxf5#
- 1...Sxe3
- 2.Rf4#
- 1...Sxh6
- 2.Rf4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc8
- 2.Qd5#
- 1...Sg3
- 2.Bd3#
- 2.Rf4#
- 1...Sd4
- 2.Bd3#
- 2.Rf4#
- 1...Sh4
- 2.Bd3#
- 2.Rf4#
- 1...Sd6
- 2.Bd3#
- 2.Rf4#
- 1...Se7
- 2.Bd3#
- 2.Rf4#
- 1...Sg7
- 2.Bd3#
- 2.Rf4#
- 1...Rxd8+!
- threat
- 1.Qc6+?
- 1...Ke5
- 2.Sf7#
- 2.Bf4#
- 2.Ra5#
- 2.Qe6#
- 1...Bxc6!
- 1...Ke5
- 1.Qd7?
- threat
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...Rxh6
- 2.Qxf5#
- 1...Sxe3
- 2.Rxe3#
- 1...Sxh6
- 2.Qd4#
- 1...Bd5
- 2.Qxd5#
- 1...Bc8
- 2.Qd5#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sd6!
- threat
- 1.Qxb7+?
- 1...Ke5
- 2.Bf4#
- 2.Qd5#
- 1...Rxb7!
- 1...Ke5
- 1.Bf1?
- Keys
- 1.Bg7!
- threat
- 2.Qe5#
- 1...Sxe3
- 2.Bd3#
- 1...Sxg7
- 2.Rf4#
- 1...Bd5
- 2.Qxd5#
- 1...Sg3
- 2.Rf4#
- 1...Sd4
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Sd6
- 2.Rf4#
- 1...Sh6
- 2.Rf4#
- 1...Se7
- 2.Rf4#
- threat
- 1.Bg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::QAB1(F),XS(c)
- R(d);N_GUARD,XB(G)::QAB1(F),XS(c)
- B(f);N_GUARD::QAB1(F),XB(f)
- B(f);N_GUARD::QAB1(F)
- S(c);OGATE,XP(D)::R1(I)
- S(c);OGATE,XB(G)::R1(I)
- Tries
- Try
- B(B);
- Threat
- B(B)
- Vars
- S(c);OGATE,XP(D)::R1(I)
- B(f);N_GUARD::QAB1(F),XB(f)
- R(d);N_GUARD::QAB1(F),XS(c)
- Refutation
- K(a);P_SPINS(c),S_FLIGHT
- Try
- B(G);
- Threat
- QAB1(F),XS(c)
- Vars
- S(c);OGATE,XP(D)::R1(I)
- B(f);N_GUARD::QAB1(F),XB(f)
- B(f);N_GUARD::QAB1(F)
- Refutation
- R(d);XB(G)
- Try
- R(C);
- Threat
- QAR1(F)
- Vars
- S(c);OGATE,SBLOCK,XP(D)::R1(I)
- B(f);N_GUARD::QAB1(F),XB(f)
- S(c);::B(B)
- Refutation
- S(c);XB(G)
- Try
- R(I);P_SPINS(H)
- Threat
- R(I)
- Vars
- R(d);N_GUARD,XB(G)::QAB1(F),XS(c)
- S(c);OGATE,XP(D)::R1(I)
- S(c);OGATE,XB(G)::R1(I)
- B(f);N_GUARD::QAB1(F),XB(f)
- B(f);N_GUARD,N_PINS(H)::QAB1(F)
- Refutation
- R(h);CHECK,XS(H)
- Try
- Q(F);CHECK
- Refutation
- B(f);XQ(F)
- Try
- Q(F);
- Threat
- QAR2(F)
- Vars
- K(a);P-FLIGHT::QAR1(F)
- R(d);N_GUARD,XB(G)::QAB1(F),XS(c)
- S(c);OGATE,XP(D)::R1(C),XS(c)
- S(c);N_GUARD,XB(G)::QAR1(F)
- B(f);N_GUARD::QAB1(F),XB(f)
- B(f);N_GUARD::QAB1(F)
- S(c);N_GUARD::QAR1(F)
- S(c);N_GUARD::QAR1(F),XS(c)
- Refutation
- S(c);
- Try
- Q(F);CHECK,XB(f)
- Refutation
- R(h);XQ(F)
- Try
- Actual
- B(G);
- Threat
- QAR1(F)
- Vars
- S(c);SBLOCK,XP(D)::B(B)
- S(c);OGATE,XB(G)::R1(I)
- B(f);N_GUARD::QAB1(F),XB(f)
- S(c);OGATE::R1(I)
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