MESON Chess Problem Database
Problem Display
PID: 136822 (5KBk/8/7n/1pP1R3/3R4/2B5/1n5p/4N2q w - - 0 1)
Gronroos, Mikael
Mat, 1980
#2
7 + 6
| 6490 | yacpdb | 2010 |
| 17121 | Encyclopedia of Chess Problems (Velimirovic/Valtonen) | 2012 |
SOLUTION
- SOUND
- Tries
- 1.Rh4?
- threat
- 2.Rxh6#
- 2.Re2#
- 2.Re3#
- 2.Ree4#
- 2.Rd5#
- 2.Rf5#
- 2.Rg5#
- 2.Reh5#
- 2.Re6#
- 2.Re7#
- 2.Re8#
- 1...Qa8+
- 2.Re8#
- 1...Qf1+
- 2.Rf5#
- 1...Qxe1
- 2.Rxh6#
- 2.Rxe1#
- 1...Qg1
- 2.Rxh6#
- 1...Qg2
- 2.Rxh6#
- 2.Rg5#
- 1...Qe4
- 2.Rexe4#
- 1...Qd5
- 2.Rxh6#
- 2.Rxd5#
- 1...Qc6
- 2.Re6#
- 1...Qb7
- 2.Re7#
- 1...Sd1
- 2.Rxh6#
- 1...Sd3
- 2.Rxh6#
- 1...Sa4
- 2.Rxh6#
- 1...Sc4
- 2.Rxh6#
- 1...b4
- 2.Rxh6#
- 1...Qf3+!
- threat
- 1.Rd6?
- threat
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Red5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Ree6#
- 2.Re7#
- 2.Re8#
- 2.Rxh6#
- 1...Qa8+
- 2.Re8#
- 1...Qf1+
- 2.Rf5#
- 1...Qxe1
- 2.Rxe1#
- 2.Rxh6#
- 1...Sxg8
- 2.Rh5#
- 1...Qg1
- 2.Rxh6#
- 1...Qg2
- 2.Rg5#
- 2.Rxh6#
- 1...Qe4
- 2.Rxe4#
- 1...Qd5
- 2.Rexd5#
- 2.Rxh6#
- 1...Qc6
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Red5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Ree6#
- 2.Re7#
- 2.Re8#
- 1...Qb7
- 2.Re7#
- 1...Sd1
- 2.Rxh6#
- 1...Sd3
- 2.Rxh6#
- 1...Sa4
- 2.Rxh6#
- 1...Sc4
- 2.Rxh6#
- 1...Sg4
- 2.Rh5#
- 1...Sf5
- 2.Rxf5#
- 1...Sf7
- 2.Rh5#
- 1...b4
- 2.Rxh6#
- 1...Qf3+!
- threat
- 1.Rd7?
- threat
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Red5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re6#
- 2.Ree7#
- 2.Re8#
- 2.Rh7#
- 1...Qa8+
- 2.Re8#
- 1...Qf1+
- 2.Rf5#
- 1...Qxe1
- 2.Rxe1#
- 2.Rh7#
- 1...Sxg8
- 2.Rh5#
- 1...Qg1
- 2.Rh7#
- 1...Qg2
- 2.Rg5#
- 2.Rh7#
- 1...Qe4
- 2.Rxe4#
- 1...Qd5
- 2.Rexd5#
- 2.Rh7#
- 1...Qc6
- 2.Re6#
- 2.Rh7#
- 1...Qb7
- 2.Re2#
- 2.Re3#
- 2.Re4#
- 2.Red5#
- 2.Rf5#
- 2.Rg5#
- 2.Rh5#
- 2.Re6#
- 2.Ree7#
- 2.Re8#
- 1...Sd1
- 2.Rh7#
- 1...Sd3
- 2.Rh7#
- 1...Sa4
- 2.Rh7#
- 1...Sc4
- 2.Rh7#
- 1...Sg4
- 2.Rh5#
- 2.Rh7#
- 1...Sf5
- 2.Rxf5#
- 2.Rh7#
- 1...Sf7
- 2.Rh5#
- 1...b4
- 2.Rh7#
- 1...Qf3+!
- threat
- 1.Rh5?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rdh4#
- 2.Rdd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 2.Rxh6#
- 1...Qa8+
- 2.Rd8#
- 1...Qf1+
- 2.Rf4#
- 1...Qxe1
- 2.Rxh6#
- 1...Qg1
- 2.Rxh6#
- 1...Qg2
- 2.Rg4#
- 2.Rxh6#
- 1...Qe4
- 2.Rxe4#
- 1...Qd5
- 2.Rdxd5#
- 2.Rxh6#
- 1...Qc6
- 2.Rd6#
- 1...Qb7
- 2.Rd7#
- 1...Sd1
- 2.Rxd1#
- 2.Rxh6#
- 1...Sd3
- 2.Rxd3#
- 2.Rxh6#
- 1...Sa4
- 2.Rxa4#
- 2.Rxh6#
- 1...Sc4
- 2.Rxc4#
- 2.Rxh6#
- 1...b4
- 2.Rxb4#
- 2.Rxh6#
- 1...Qf3+!
- threat
- 1.Re6?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rde4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rdd6#
- 2.Rd7#
- 2.Rd8#
- 2.Rxh6#
- 1...Qa8+
- 2.Rd8#
- 1...Qf1+
- 2.Rf4#
- 1...Qxe1
- 2.Rxh6#
- 1...Sxg8
- 2.Rh4#
- 1...Qg1
- 2.Rxh6#
- 1...Qg2
- 2.Rg4#
- 2.Rxh6#
- 1...Qe4
- 2.Rdxe4#
- 1...Qd5
- 2.Rxd5#
- 2.Rxh6#
- 1...Qc6
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rde4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rdd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qb7
- 2.Rd7#
- 1...Sd1
- 2.Rxd1#
- 2.Rxh6#
- 1...Sd3
- 2.Rxd3#
- 2.Rxh6#
- 1...Sa4
- 2.Rxa4#
- 2.Rxh6#
- 1...Sc4
- 2.Rxc4#
- 2.Rxh6#
- 1...Sg4
- 2.Rxg4#
- 1...Sf5
- 2.Rh4#
- 1...Sf7
- 2.Rh4#
- 1...b4
- 2.Rxb4#
- 2.Rxh6#
- 1...Qf3+!
- threat
- 1.Re7?
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rde4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rd6#
- 2.Rdd7#
- 2.Rd8#
- 2.Rh7#
- 1...Qa8+
- 2.Rd8#
- 1...Qf1+
- 2.Rf4#
- 1...Qxe1
- 2.Rh7#
- 1...Sxg8
- 2.Rh4#
- 1...Qg1
- 2.Rh7#
- 1...Qg2
- 2.Rg4#
- 2.Rh7#
- 1...Qe4
- 2.Rdxe4#
- 1...Qd5
- 2.Rxd5#
- 2.Rh7#
- 1...Qc6
- 2.Rd6#
- 2.Rh7#
- 1...Qb7
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rde4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rd6#
- 2.Rdd7#
- 2.Rd8#
- 1...Sd1
- 2.Rxd1#
- 2.Rh7#
- 1...Sd3
- 2.Rxd3#
- 2.Rh7#
- 1...Sa4
- 2.Rxa4#
- 2.Rh7#
- 1...Sc4
- 2.Rxc4#
- 2.Rh7#
- 1...Sg4
- 2.Rxg4#
- 2.Rh7#
- 1...Sf5
- 2.Rh4#
- 2.Rh7#
- 1...Sf7
- 2.Rh4#
- 1...b4
- 2.Rxb4#
- 2.Rh7#
- 1...Qf3+!
- threat
- 1.Rh4?
- Keys
- 1.Re3!
- threat
- 2.Rd1#
- 2.Rd2#
- 2.Rdd3#
- 2.Ra4#
- 2.Rb4#
- 2.Rc4#
- 2.Rde4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rd5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Qf3+
- 2.Rf4#
- 1...Qa8+
- 2.Rd8#
- 1...Qf1+
- 2.Rf4#
- 1...Qxe1
- 2.Rd2#
- 1...Sxg8
- 2.Rh4#
- 1...Qg1
- 2.Rg4#
- 1...Qg2
- 2.Rg4#
- 1...Qe4
- 2.Rdxe4#
- 1...Qd5
- 2.Rxd5#
- 1...Qc6
- 2.Rd6#
- 1...Qb7
- 2.Rd7#
- 1...Sd1
- 2.Rxd1#
- 1...Sd3
- 2.Rdxd3#
- 1...Sa4
- 2.Rxa4#
- 1...Sc4
- 2.Rxc4#
- 1...Sg4
- 2.Rxg4#
- 1...Sf5
- 2.Rh4#
- 1...Sf7
- 2.Rh4#
- 1...b4
- 2.Rxb4#
- threat
- 1.Re3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 19
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(C);P_PINS(e)
- Threat
- DUALS(11)
- Vars
- Q(a);CHECK::B(B)+R(E)
- Q(a);::R(C),XS(e)
- Q(a);::B(B)+R(E),XQ(a)
- Q(a);::B(B)+R(E)
- S(b);::R(C),XS(e)
- P(d);::R(C),XS(e)
- Refutation
- Q(a);CHECK
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- Q(a);CHECK::B(B)+R(E)
- S(e);XB(G)::B(B)+R(E),DCHECK
- Q(a);::R(C),XS(e)
- Q(a);::B(B)+R(E),XQ(a)
- Q(a);::B(B)+R(E)
- S(b);::R(C),XS(e)
- S(e);::B(B)+R(E),DCHECK
- S(e);::B(B)+R(E),XS(e)
- P(d);::R(C),XS(e)
- Refutation
- Q(a);CHECK
- Try
- R(C);
- Threat
- DUALS(11)
- Vars
- Q(a);CHECK::B(B)+R(E)
- S(e);XB(G)::B(B)+R(E),DCHECK
- Q(a);::R1(C)
- Q(a);::B(B)+R(E),XQ(a)
- S(b);::R1(C)
- S(e);::B(B)+R(E),DCHECK
- P(d);::R1(C)
- Refutation
- Q(a);CHECK
- Try
- R(E);P_PINS(e)
- Threat
- DUALS(15)
- Vars
- Q(a);CHECK::B(B)+R(C)
- Q(a);XS(A)::R(E),XS(e)
- Q(a);::R(E),XS(e)
- Q(a);::B(B)+R(C),XQ(a)
- Q(a);::B(B)+R(C)
- Refutation
- Q(a);CHECK
- Try
- R(E);
- Threat
- DUALS(15)
- Vars
- Q(a);CHECK::B(B)+R(C)
- Q(a);XS(A)::R(E),XS(e)
- S(e);XB(G)::B(B)+R(C),DCHECK
- Q(a);::R(E),XS(e)
- Q(a);::B(B)+R(C),XQ(a)
- Q(a);::B(B)+R(C)
- S(e);::B(B)+R(C),XS(e)
- S(e);::B(B)+R(C),DCHECK
- Refutation
- Q(a);CHECK
- Try
- R(E);
- Threat
- DUALS(15)
- Vars
- Q(a);CHECK::B(B)+R(C)
- Q(a);XS(A)::R1(E)
- S(e);XB(G)::B(B)+R(C),DCHECK
- Q(a);::R1(E)
- Q(a);::B(B)+R(C),XQ(a)
- S(e);::B(B)+R(C),DCHECK
- Refutation
- Q(a);CHECK
- Try
- Actual
- R(E);
- Threat
- DUALS(14)
- Vars
- Q(a);CHECK::B(B)+R(C)
- Q(a);XS(A)::B(B)+R(C)
- S(e);XB(G)::B(B)+R(C),DCHECK
- Q(a);::B(B)+R(C)
- Q(a);::B(B)+R(C),XQ(a)
- S(b);::B(B)+R(C),XS(b)
- S(e);::B(B)+R(C),XS(e)
- S(e);::B(B)+R(C),DCHECK
- P(d);::B(B)+R(C),XP(d)
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