MESON Chess Problem Database
Problem Display
PID: 99926 (5B2/1N1B1Q2/rpR3K1/p1br2p1/2k4p/pR3N2/1PP1p2q/8 w - - 0 1)
Arefiev, Yuri
Magyar Sakkelet, 1989
#2
10 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qg1
- 2.Sd6#
- 1...Qd6+
- 2.Sxd6#
- 1...Qh1
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qg2
- 2.Sd6#
- 1...Qh3
- 2.Sd6#
- 1...Qg1
- Tries
- 1.Bf5?
- threat
- 2.Bd3#
- 1...Qd6+
- 2.Sxd6#
- 1...e1S!
- threat
- 1.Be6?
- threat
- 2.Bxd5#
- 1...Qd6
- 2.Sxd6#
- 1...Qe5!
- threat
- 1.Bxc5?
- threat
- 2.Sd2#
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...Qd6+
- 2.Sxd6#
- 2.Bxd6#
- 1...axb2
- 2.Sd2#
- 2.Bg1#
- 2.Bf2#
- 2.Ba3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...e1Q
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...e1S
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...e1B
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...e1R
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...Qg1
- 2.Sd2#
- 2.Se5#
- 2.Sd6#
- 2.Bxg1#
- 2.Bf2#
- 2.Be3#
- 2.Bd4#
- 1...Qf4
- 2.Bg1#
- 2.Bf2#
- 2.Bxa3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...Qc7
- 2.Sd2#
- 1...Qf2
- 2.Sd2#
- 2.Se5#
- 2.Sd6#
- 2.Bxf2#
- 2.Be3#
- 2.Bd4#
- 1...a2
- 2.Sd2#
- 2.Bg1#
- 2.Bf2#
- 2.Ba3#
- 2.Be3#
- 2.Bd4#
- 2.Bxb6#
- 2.Bd6#
- 2.Be7#
- 2.Bf8#
- 1...b5
- 2.Sd2#
- 2.Bb6#
- 2.Rc3#
- 1...bxc5!
- threat
- 1.Rd6?
- threat
- 2.Bb5#
- 2.Qxd5#
- 1...Bxd6
- 2.Bb5#
- 1...Qe5
- 2.Bb5#
- 1...Bb4
- 2.Qxd5#
- 1...b5
- 2.Bxb5#
- 2.Qxd5#
- 1...Qxd6+!
- threat
- 1.Rf6?
- threat
- 2.Bb5#
- 1...b5
- 2.Bxb5#
- 1...Bb4!
- threat
- 1.Rc7?
- threat
- 2.Bb5#
- 1...Qd6+
- 2.Sxd6#
- 1...b5+!
- threat
- 1.Rc8?
- threat
- 2.Bb5#
- 1...Qd6+
- 2.Sxd6#
- 1...b5+!
- threat
- 1.Bf5?
- Keys
- 1.Re6!
- threat
- 2.Bb5#
- 1...Rxd7
- 2.Re4#
- 1...Bxf8
- 2.Re4#
- 1...Rd1
- 2.Re4#
- 1...Rd2
- 2.Re4#
- 1...Rd3
- 2.Re4#
- 1...Rd4
- 2.Re4#
- 1...Re5
- 2.Rxe5#
- 1...Rf5
- 2.Re4#
- 1...Rd6
- 2.Rxd6#
- 1...Bg1
- 2.Rc3#
- 1...Bf2
- 2.Rc3#
- 1...Be3
- 2.Rc3#
- 1...Bb4
- 2.Re4#
- 1...Bd4
- 2.Sd2#
- 1...Bd6
- 2.Re4#
- 1...Be7
- 2.Re4#
- 1...b5
- 2.Bxb5#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 17
- REMOVED MATES = 6
- Sets
- Q(b);N_GUARD::S(G)
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Tries
- Try
- B(H);
- Threat
- B(H)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Refutation
- P(a);
- Try
- B(H);
- Threat
- B(H),XR(h)
- Vars
- Q(b);N_GUARD,P_PINB(H)::S(G),XQ(b)
- Refutation
- Q(b);
- Try
- B(J);XB(g)
- Threat
- DUALS(10)
- Vars
- Q(b);::S(D)
- Refutation
- P(k);P_PINR(E),P_SPINP(k),XB(J)
- Try
- R(E);N_PINB(g)
- Threat
- DUALS(2)
- Vars
- B(g);XR(E)::B(H)
- Q(b);::B(H)
- B(g);::QAB1(I),XR(h)
- Refutation
- Q(b);CHECK,XR(E)
- Try
- R(E);N_PINB(g)
- Threat
- B(H)
- Vars
- P(k);P_PINR(E)::B(H),XP(k)
- Refutation
- B(g);
- Try
- R(E);
- Threat
- B(H)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Refutation
- P(k);CHECK
- Try
- R(E);
- Threat
- B(H)
- Vars
- Q(b);CHECK,N_GUARD::S(G),XQ(b)
- Refutation
- P(k);CHECK
- Try
- Actual
- R(E);N_PINB(g),N_PINR(h)
- Threat
- B(H)
- Vars
- R(h);XB(H)::QAB(I)+R(E),DCHECK
- B(g);N_GUARD,XB(J)::R(E)
- R(h);::QAB(I)+R(E),DCHECK
- R(h);S_CUTB(g)::QAB(I)+R(E)
- R(h);OGATEB::QAB(I)+R(E),XR(h)
- R(h);OGATEB,P_PINR(E)::QAB(I)+R(E),XR(h)
- B(g);::R1(C)
- B(g);N_GUARD::R(E)
- B(g);SBLOCK,S_CUTR(h)::S(D)
- P(k);P_PINR(E)::B(H),XP(k)
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