MESON Chess Problem Database
Problem Display
PID: 143546 (5n2/K4p2/P1Pp1Q2/RPkN3r/1p5r/B7/B1PR3b/3nNb2 w - - 0 1)
Popov, Valery
2nd Prize, Shakhmatnaya kompozitsiya, 2005
#2
12 + 10
| 23 | Die Schwalbe | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rh3
- 2.Bxb4#
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Rxd5
- 2.Rxd5#
- 1...Bg2
- 2.Sd3#
- 1...Bd3
- 2.Sxd3#
- 1...Bh3
- 2.Sd3#
- 1...Bc4
- 2.Bxb4#
- 1...Bf4
- 2.Bxb4#
- 2.Qd4#
- 1...Rh3
- Tries
- 1.Sf4?
- threat
- 2.Qd4#
- 2.Qxd6#
- 1...Rxf4
- 2.Qxd6#
- 1...Bxb5
- 2.Qxd6#
- 1...Bxf4
- 2.Qd4#
- 1...Rd5
- 2.Rxd5#
- 1...Re5
- 2.Qxd6#
- 1...Rh6
- 2.Rd5#
- 2.Qd4#
- 1...Bd3
- 2.Sexd3#
- 2.Sfxd3#
- 1...Bg1
- 2.Qxd6#
- 1...d5
- 2.Qe7#
- 1...Se6!
- threat
- 1.Qc3+?
- 1...Rc4
- 2.Bxb4#
- 1...Bc4
- 2.Bxb4#
- 2.Qxb4#
- 1...Sxc3!
- 1...Rc4
- 1.Qxh4?
- threat
- 2.Bxb4#
- 2.Qxb4#
- 2.Qd4#
- 1...Rxd5
- 2.Bxb4#
- 2.Rxd5#
- 2.Qxb4#
- 1...Bxb5
- 2.Qc4#
- 1...bxa3
- 2.Qb4#
- 2.Qd4#
- 1...Bd3
- 2.Sxd3#
- 2.Bxb4#
- 2.Qxb4#
- 1...Bc4
- 2.Bxb4#
- 2.Qxc4#
- 2.Qd4#
- 1...Bg1
- 2.Bxb4#
- 2.Qxb4#
- 1...Bf4
- 2.Bxb4#
- 1...Be5
- 2.Bxb4#
- 2.Qxb4#
- 1...Se6
- 2.Bxb4#
- 2.Qxb4#
- 1...Rxh4!
- threat
- 1.c7?
- threat
- 2.c8Q#
- 2.c8R#
- 1...Rxd5
- 2.Rxd5#
- 2.c8Q#
- 2.c8R#
- 1...Bxb5
- 2.c8Q#
- 2.c8R#
- 1...bxa3
- 2.c8Q#
- 2.c8R#
- 1...Re4
- 2.c8Q#
- 2.c8R#
- 1...Rh3
- 2.Bxb4#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Rc4
- 2.c8Q#
- 2.c8R#
- 1...Rd4
- 2.Qxd4#
- 2.c8Q#
- 2.c8R#
- 1...Rf4
- 2.c8Q#
- 2.c8R#
- 1...Rg4
- 2.c8Q#
- 2.c8R#
- 1...Re5
- 2.c8Q#
- 2.c8R#
- 1...Rf5
- 2.c8Q#
- 2.c8R#
- 1...Rg5
- 2.c8Q#
- 2.c8R#
- 1...Rh6
- 2.c8Q#
- 2.c8R#
- 1...Rh7
- 2.c8Q#
- 2.c8R#
- 1...Rh8
- 2.c8Q#
- 2.c8R#
- 1...Be2
- 2.c8Q#
- 2.c8R#
- 1...Bg2
- 2.Sd3#
- 2.c8Q#
- 2.c8R#
- 1...Bd3
- 2.Sxd3#
- 2.c8Q#
- 2.c8R#
- 1...Bh3
- 2.Sd3#
- 1...Bc4
- 2.Bxb4#
- 2.c8Q#
- 2.c8R#
- 1...Bg1
- 2.c8Q#
- 2.c8R#
- 1...Bg3
- 2.c8Q#
- 2.c8R#
- 1...Bf4
- 2.Bxb4#
- 2.Qd4#
- 2.c8Q#
- 2.c8R#
- 1...Be5
- 2.c8Q#
- 2.c8R#
- 1...Sb2
- 2.c8Q#
- 2.c8R#
- 1...Sf2
- 2.c8Q#
- 2.c8R#
- 1...Sc3
- 2.c8Q#
- 2.c8R#
- 1...Se3
- 2.c8Q#
- 2.c8R#
- 1...Sg6
- 2.c8Q#
- 2.c8R#
- 1...Sd7
- 2.c8Q#
- 2.c8R#
- 1...Sh7
- 2.c8Q#
- 2.c8R#
- 1...Se6!
- threat
- 1.Sf4?
- Keys
- 1.Sxb4!
- threat
- 2.Sbd3#
- 1...Rxb4
- 2.Qd4#
- 1...Bxb5
- 2.Sed3#
- 1...Rc4
- 2.b6#
- 1...Re5
- 2.Qxd6#
- 1...Bd3
- 2.Sexd3#
- 2.Sbxd3#
- 1...Bc4
- 2.Sd5#
- 1...Be5
- 2.Rd5#
- threat
- 1.Sxb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- R(e);N_GUARD::QAB1(K),XR(e)
- R(g);OGATE,XS(H)::R1(D),XR(g)
- B(b);N_GUARD::S(A)
- B(b);N_GUARD::S(A),XB(b)
- B(b);S_CUTR(e)::B(E),XP(d)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- R(e);XS(H)::QAB1(K),XP(h)
- B(b);P_SPINB(b),XP(G)::QAB1(K),XP(h)
- B(c);XS(H)::QAB1(K)
- R(g);N_GUARD::R1(D),XR(g)
- R(g);::QAB1(K),XP(h)
- B(c);::QAB1(K),XP(h)
- P(h);OGATEB::QAB(K)
- Refutation
- S(j);
- Try
- Q(K);CHECK
- Vars
- R(e);P_SPINR(e)::B(E),XP(d)
- Refutation
- S(a);XQ(K)
- Try
- Q(K);XR(e)
- Threat
- DUALS(3)
- Vars
- B(b);N_GUARD,P_SPINB(b),XP(G)::QAR1(K)
- B(c);::B(E),XP(d)
- Refutation
- R(g);XQ(K)
- Try
- P(J);
- Threat
- P=Q
- Vars
- B(b);P_SPINB(b),XP(G)::P=Q
- P(d);N_SPINP(d),XB(E)::P=Q
- R(e);::P=Q
- R(g);::P=Q
- B(b);::P=Q
- B(b);N_GUARD::S(A)
- B(c);::P=Q
- S(a);::P=Q
- S(j);::P=Q
- Refutation
- S(j);
- Try
- Actual
- S(H);XP(d)
- Threat
- B(E)+S(H),DCHECK
- Vars
- R(e);N_GUARD,P_SPINR(e),XS(H)::QAB1(K)
- B(b);N_GUARD,P_SPINB(b),XP(G)::S(A)
- R(e);S_CUTB(b)::R(F)+P(G)
- R(g);S_CUTB(c)::QAB1(K),XP(h)
- B(b);S_CUTR(e)::B(E)+S(H)
- B(c);S_CUTR(g)::R1(D)
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