MESON Chess Problem Database
Problem Display
PID: 225785 (3R4/p3p1K1/4k1n1/1B1p4/4Pp2/1N3N2/5Q2/2rr4 w - - 0 1)
Skubak, Jan
Praca, 1991
#2
7 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc5#
- 1...Rb1
- 2.Sc5#
- 1...Rc5
- 2.Sxc5#
- 1...Re1
- 2.Sbd4#
- 1...Rf1
- 2.Sbd4#
- 1...Rg1
- 2.Sbd4#
- 1...Rh1
- 2.Sbd4#
- 1...Rd4
- 2.Sbxd4#
- 1...Se5
- 2.Sg5#
- 1...Ra1
- Tries
- 1.Bf1?
- threat
- 2.Bh3#
- 1...Rxf1
- 2.Sbd4#
- 1...Se5
- 2.Sg5#
- 1...Sh4!
- threat
- 1.Bd3?
- threat
- 2.Sbd4#
- 2.exd5#
- 1...dxe4
- 2.Sbd4#
- 1...Rc4
- 2.exd5#
- 1...Rc5
- 2.Sbd4#
- 2.Sxc5#
- 1...d4
- 2.Sbxd4#
- 1...Rxd3!
- threat
- 1.Rxd5?
- threat
- 2.Sg5#
- 2.Bd7#
- 1...Rc6
- 2.Sg5#
- 1...Rc7
- 2.Sg5#
- 1...Rg1
- 2.Sbd4#
- 2.Sfd4#
- 2.Bd7#
- 1...Se5
- 2.Sg5#
- 1...Sf8
- 2.Sg5#
- 1...Rxd5!
- threat
- 1.Qg1?
- threat
- 2.Qg4#
- 2.Qxg6#
- 1...Rxg1
- 2.Sbd4#
- 1...Se5
- 2.Sg5#
- 1...Sf8
- 2.Qg4#
- 1...Sh8
- 2.Qg4#
- 1...Sh4!
- threat
- 1.Qh4?
- threat
- 2.Qh3#
- 2.Qg4#
- 1...Rg1
- 2.Sbd4#
- 1...Rh1
- 2.Sbd4#
- 2.Qg4#
- 1...Se5
- 2.Sg5#
- 1...Sxh4!
- threat
- 1.Qc5?
- threat
- 2.Bd7#
- 1...Rxc5
- 2.Sxc5#
- 1...dxe4
- 2.Sg5#
- 1...Se5
- 2.Sg5#
- 1...Sf8!
- threat
- 1.Qb6+?
- 1...Rc6
- 2.Sc5#
- 2.Qxc6#
- 1...axb6!
- 1...Rc6
- 1.Qf1?
- threat
- 2.Qh3#
- 1...Rxf1
- 2.Sbd4#
- 1...Se5
- 2.Sg5#
- 1...Sh4!
- threat
- 1.Qg2?
- threat
- 2.Qh3#
- 2.Qg4#
- 2.Qxg6#
- 1...Rg1
- 2.Sbd4#
- 1...Rh1
- 2.Sbd4#
- 2.Qg4#
- 2.Qxg6#
- 1...Se5
- 2.Sg5#
- 1...Sf8
- 2.Qh3#
- 2.Qg4#
- 1...Sh8
- 2.Qh3#
- 2.Qg4#
- 1...Sh4!
- threat
- 1.Qh2?
- threat
- 2.Qh3#
- 1...Rg1
- 2.Sbd4#
- 1...Rh1
- 2.Sbd4#
- 1...Se5
- 2.Sg5#
- 1...Sh4!
- threat
- 1.Bf1?
- Keys
- 1.Qd4!
- threat
- 2.Sg5#
- 1...Rxd4
- 2.Sbxd4#
- 1...dxe4
- 2.Bd7#
- 1...Rg1
- 2.Qxd5#
- threat
- 1.Qd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(a);N_GUARD::S(B)
- R(a);N_GUARD::S(B),XR(a)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::S(B),XR(b)
- S(f);SBLOCK::S(C)
- Tries
- Try
- B(E);
- Threat
- B(E)
- Vars
- R(b);N_GUARD,XB(E)::S(B)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- P(d);XP(D)::S(B)
- R(a);::P(D),XP(d)
- P(d);::S(B),XP(d)
- Refutation
- R(b);XB(E)
- Try
- R(G);XP(d)
- Threat
- DUALS(2)
- Vars
- R(a);::S(C)
- S(f);::S(C)
- Refutation
- R(b);XR(G)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD,XQ(A)::S(B)
- S(f);SBLOCK::S(C)
- S(f);::QAB(A)
- Refutation
- S(f);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(b);N_GUARD::S(B)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);XQ(A)
- Try
- Q(A);
- Threat
- B(E)
- Vars
- R(a);XQ(A)::S(B),XR(a)
- P(d);XP(D)::S(C)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);
- Try
- Q(A);CHECK
- Refutation
- P(g);XQ(A)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(b);N_GUARD,XQ(A)::S(B)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);
- Try
- Q(A);
- Threat
- DUALS(3)
- Vars
- R(b);N_GUARD::S(B)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(b);N_GUARD::S(B)
- S(f);SBLOCK::S(C)
- Refutation
- S(f);
- Try
- Actual
- Q(A);
- Threat
- S(C)
- Vars
- R(b);XQ(A)::S(B),XR(b)
- P(d);XP(D)::B(E)
- R(b);N_GUARD::QAB1(A),XP(d)
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