MESON Chess Problem Database
Problem Display
PID: 99690 (4R1r1/3R4/2p2p2/1N3Q2/2k4r/P5pB/P1p5/1q3NK1 w - - 0 1)
Ancin, Andrej
Comm., Magyar Sakkelet, 1973
#2
9 + 8
| 14649 | Andrej Ancin - Chess Compositions | 2008 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxa2
- 2.Sd2#
- 1...Qxf1+
- 2.Bxf1#
- 1...Qb2
- 2.Sd2#
- 2.Se3#
- 1...Qb3
- 2.Sd2#
- 1...Qb4
- 2.Se3#
- 1...Qxb5
- 2.Qxc2#
- 1...Rxh3
- 2.Rd4#
- 2.Re4#
- 1...Rd4
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 1...Rh5
- 2.Rd4#
- 2.Re4#
- 1...Rh6
- 2.Rd4#
- 2.Re4#
- 1...Rh7
- 2.Rd4#
- 2.Re4#
- 1...Rhh8
- 2.Rd4#
- 2.Re4#
- 1...c1S
- 2.Sd2#
- 2.Se3#
- 1...c5
- 2.Qd3#
- 1...Qxa2
- Tries
- 1.Rd3?
- threat
- 2.Sd6#
- 2.Rc3#
- 1...Qxb5
- 2.Sd2#
- 2.Se3#
- 1...cxb5
- 2.Qd5#
- 1...Re4
- 2.Rc3#
- 1...c5
- 2.Sd6#
- 1...c1Q
- 2.Sd6#
- 1...c1R
- 2.Sd6#
- 1...Qa1
- 2.Sd6#
- 1...Qe1
- 2.Sd6#
- 1...Qb2
- 2.Sd2#
- 2.Se3#
- 2.Sd6#
- 1...Qb3
- 2.Sd2#
- 2.Se3#
- 2.Sd6#
- 2.axb3#
- 1...Qb4
- 2.Se3#
- 1...Rd4
- 2.Rc3#
- 2.Rxd4#
- 1...Qxf1+!
- threat
- 1.Rd5?
- threat
- 2.Rc5#
- 2.Qd3#
- 1...Qxf1+
- 2.Bxf1#
- 1...Qxa2
- 2.Sd2#
- 2.Qd3#
- 1...Qxb5
- 2.Qd3#
- 1...cxb5
- 2.Qd3#
- 1...c5
- 2.Rxc5#
- 2.Qd3#
- 1...c1Q
- 2.Rc5#
- 1...c1S
- 2.Sd2#
- 2.Se3#
- 2.Rc5#
- 1...c1B
- 2.Rc5#
- 1...c1R
- 2.Rc5#
- 1...Qd1
- 2.Rc5#
- 1...Qb3
- 2.Sd2#
- 2.Rc5#
- 1...Qb4
- 2.Se3#
- 2.Qd3#
- 1...Rd4
- 2.Rxd4#
- 2.Rc5#
- 1...Re4
- 2.Rxe4#
- 2.Qxe4#
- 1...cxd5!
- threat
- 1.Re5?
- threat
- 2.Rc5#
- 2.Qd3#
- 2.Qe6#
- 1...Qxf1+
- 2.Bxf1#
- 2.Qxf1#
- 1...Qxa2
- 2.Sd2#
- 2.Qd3#
- 2.Qe6#
- 1...Qxb5
- 2.Qxc2#
- 2.Qd3#
- 1...cxb5
- 2.Rc5#
- 2.Qd3#
- 1...c5
- 2.Rxc5#
- 2.Qd3#
- 1...c1Q
- 2.Rc5#
- 2.Qe6#
- 1...c1S
- 2.Sd2#
- 2.Se3#
- 2.Rc5#
- 2.Qe6#
- 1...c1B
- 2.Rc5#
- 2.Qe6#
- 1...c1R
- 2.Rc5#
- 2.Qe6#
- 1...Qd1
- 2.Rc5#
- 1...Qb3
- 2.Sd2#
- 2.Rc5#
- 2.Qe6#
- 1...Qb4
- 2.Se3#
- 2.Qd3#
- 2.Qe6#
- 1...Rd4
- 2.Rc5#
- 2.Rxd4#
- 1...Re4
- 2.Rxe4#
- 2.Rc5#
- 2.Qxe4#
- 2.Qe6#
- 1...Re8
- 2.Rc5#
- 2.Qd3#
- 1...fxe5!
- threat
- 1.Re6?
- threat
- 2.Rxc6#
- 1...Qxf1+
- 2.Bxf1#
- 1...Qxa2
- 2.Sd2#
- 1...Qxb5
- 2.Qxc2#
- 1...cxb5
- 2.Rc6#
- 1...c5
- 2.Qd3#
- 1...Qb4
- 2.Se3#
- 1...Rc8!
- threat
- 1.Rc8?
- threat
- 2.Rxc6#
- 2.Qd5#
- 1...Qxf1+
- 2.Bxf1#
- 1...Qxa2
- 2.Sd2#
- 2.Qd5#
- 1...Qxb5
- 2.Qxc2#
- 1...c5
- 2.Rxc5#
- 2.Qd3#
- 2.Qxc5#
- 1...Qd1
- 2.Rxc6#
- 1...Qb4
- 2.Se3#
- 2.Qd5#
- 1...Rd4
- 2.Rxd4#
- 2.Rxc6#
- 1...Rh5
- 2.Rd4#
- 2.Rxc6#
- 1...Rg5
- 2.Rxc6#
- 1...Rxc8!
- threat
- 1.Rd3?
- Keys
- 1.Rd6!
- threat
- 2.Rxc6#
- 1...Qxf1+
- 2.Bxf1#
- 1...Qxa2
- 2.Sd2#
- 1...Qxb5
- 2.Qxc2#
- 1...cxb5
- 2.Qc8#
- 1...c5
- 2.Qd3#
- 1...Qb4
- 2.Se3#
- 1...Re4
- 2.Rxe4#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 2
- Sets
- Q(a);N_PINS(A),XP(C)::S(A)
- Q(a);CHECK,OGATE,XS(A)::B(E),XQ(a)
- Q(a);N_PINS(A)::S(A)
- Q(a);N_GUARD,N_PINS(A),SBLOCK,XS(F)::QAR2(G),XP(b)
- R(e);N_GUARD::R1(H),XR(e)
- R(e);N_GUARD::R(I),XR(e)
- P(f);SBLOCK::QAB1(G)
- Tries
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- P(f);N_GUARD,XS(F)::QAB1(G)
- R(e);::R1(H)
- P(f);::S(F)
- P(b);::S(F)
- Q(a);::S(F)
- Q(a);N_PINS(A)::S(A)
- Refutation
- Q(a);CHECK,XS(A)
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE,XS(A)::B(E),XQ(a)
- Q(a);N_PINS(A),XS(F)::QAB1(G)
- P(f);XS(F)::QAB1(G)
- P(b);::R1(H)
- P(b);N_PINS(A)::R1(H)
- Q(a);::R1(H)
- Refutation
- P(f);XR(H)
- Try
- R(I);
- Threat
- DUALS(3)
- Vars
- Q(a);::R1(I)
- Refutation
- P(g);XR(I)
- Try
- R(I);
- Threat
- R(I),XP(f)
- Vars
- Q(a);CHECK,OGATE,XS(A)::B(E),XQ(a)
- Q(a);N_PINS(A),XP(C)::S(A)
- Q(a);N_GUARD,N_PINS(A),SBLOCK,XS(F)::QAR2(G),XP(b)
- P(f);XS(F)::R(I)
- P(f);SBLOCK::QAB1(G)
- Q(a);N_PINS(A)::S(A)
- Refutation
- R(h);
- Try
- R(I);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE,XS(A)::B(E),XQ(a)
- Q(a);N_GUARD,N_PINS(A),SBLOCK,XS(F)::QAR2(G),XP(b)
- Q(a);::R(I),XP(f)
- R(h);::R(I),XP(f)
- Refutation
- R(h);N_SPINP(f),XR(I)
- Try
- Actual
- R(H);
- Threat
- R(H),XP(f)
- Vars
- Q(a);CHECK,OGATE,XS(A)::B(E),XQ(a)
- Q(a);N_PINS(A),XP(C)::S(A)
- Q(a);N_GUARD,N_PINS(A),SBLOCK,XS(F)::QAR2(G),XP(b)
- P(f);OGATEB,SBLOCK,XS(F)::QAR(G)
- P(f);SBLOCK::QAB1(G)
- Q(a);N_PINS(A)::S(A)
- R(e);N_GUARD::R(I),XR(e)
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