MESON Chess Problem Database
Problem Display
PID: 42471 (8/8/2p5/R1Nppp2/1nPk1P2/1P2p3/2Rp4/3K1QB1 w - - 0 1)
Ancin, Andrej
1st Prize, Breuer MT, 1973
#2
9 + 8
| 3753 | FIDE Album (1971-1973) | 1978 |
| 14649 | Andrej Ancin - Chess Compositions | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Sa2
- 2.Qd3#
- 1...Sxc2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...dxc4
- 2.Qxc4#
- 1...exf4
- 2.Qxf4#
- 1...e4
- 2.Se6#
- 1...Sa2
- Tries
- 1.Bf2?
- 1...Sxc2
- 2.Qd3#
- 1...exf2
- 2.Qxf2#
- 1...dxc4
- 2.Qxc4#
- 1...Sa2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...e4
- 2.Se6#
- 1...exf4!
- 1...Sxc2
- 1.Bh2?
- 1...Sxc2
- 2.Qd3#
- 1...dxc4
- 2.Qxc4#
- 1...exf4
- 2.Qxf4#
- 1...Sa2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...e4
- 2.Se6#
- 1...e2+!
- 1...Sxc2
- 1.Rxd2+?
- 1...Sd3
- 2.Rxd3#
- 2.Qxd3#
- 1...Kc3!
- 1...Sd3
- 1.Rb5?
- 1...Sxc2
- 2.Qd3#
- 1...dxc4
- 2.Qxc4#
- 1...exf4
- 2.Qxf4#
- 1...Sa2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa6
- 2.Qd3#
- 1...e4
- 2.Se6#
- 1...cxb5!
- 1...Sxc2
- 1.Qe2?
- threat
- 2.Bxe3#
- 2.Qxe3#
- 1...Sxc2
- 2.Qd3#
- 2.Qxd2#
- 1...dxc4
- 2.Qxc4#
- 1...exf4!
- threat
- 1.Qf2?
- threat
- 2.Qxe3#
- 1...Sxc2
- 2.Qxd2#
- 1...exf2
- 2.Bxf2#
- 1...exf4
- 2.Qxf4#
- 1...dxc4!
- threat
- 1.Qf3?
- threat
- 2.Bxe3#
- 2.Qxe3#
- 1...dxc4
- 2.Bxe3#
- 2.Rxc4#
- 1...exf4
- 2.Qxf4#
- 1...Sxc2!
- threat
- 1.Bf2?
- Keys
- 1.Qg2!
- 1...Sxc2
- 2.Qxd2#
- 1...dxc4
- 2.Rxc4#
- 1...exf4
- 2.Qg7#
- 1...Sa2
- 2.Qxd2#
- 1...Sd3
- 2.Se6#
- 1...Sa6
- 2.Qxd2#
- 1...e4
- 2.Qg7#
- 1...Sxc2
- 1.Qg2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 7
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD,XR(D)::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- P(e);OGATE,XP(F)::QAR1(B),XP(e)
- P(f);OGATE,XP(G)::QAR2(B),XP(f)
- P(f);SBLOCK::S(I)
- Tries
- Try
- B(C);
- Vars
- S(c);N_GUARD,XR(D)::QAR1(B)
- P(b);N_SPINP(b),OGATE,XB(C)::QAB(B),XP(b)
- P(e);OGATE,XP(F)::QAR1(B),XP(e)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- P(f);SBLOCK::S(I)
- Refutation
- P(f);XP(G)
- Try
- B(C);N_PINP(b)
- Vars
- S(c);N_GUARD,XR(D)::QAR1(B)
- P(e);OGATE,XP(F)::QAR1(B),XP(e)
- P(f);OGATE,XP(G)::QAR2(B),XP(f)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- P(f);SBLOCK::S(I)
- Refutation
- P(b);CHECK
- Try
- R(D);CHECK,XP(a)
- Refutation
- K(d);N_SPINP(b),S_FLIGHT
- Try
- R(H);
- Vars
- S(c);N_GUARD,XR(D)::QAR1(B)
- P(e);OGATE,XP(F)::QAR1(B),XP(e)
- P(f);OGATE,XP(G)::QAR2(B),XP(f)
- S(c);N_GUARD::QAR1(B)
- S(c);N_GUARD::QAR1(B),XS(c)
- P(f);SBLOCK::S(I)
- Refutation
- P(h);XR(H)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XP(F)::QAR1(B),XP(e)
- Refutation
- P(f);XP(G)
- Try
- Q(B);
- Threat
- QAB1(B),XP(b)
- Vars
- S(c);N_GUARD,XR(D)::QAR2(B),XP(a)
- P(b);OGATE,XQ(B)::B(C),XP(b)
- P(f);OGATE,XP(G)::QAR2(B),XP(f)
- Refutation
- P(e);XP(F)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- P(f);OGATE,XP(G)::QAR2(B),XP(f)
- Refutation
- S(c);XR(D)
- Try
- Actual
- Q(B);
- Vars
- S(c);N_GUARD,XR(D)::QAR2(B),XP(a)
- P(e);OGATE,XP(F)::R1(D),XP(e)
- P(f);OGATEB,XP(G)::QAB(B)
- S(c);N_GUARD::QAR2(B),XP(a)
- S(c);SBLOCK::S(I)
- P(f);OGATEB::QAB(B)
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