MESON Chess Problem Database
Problem Display
PID: 110681 (2n5/8/2p2p2/1pPkbPp1/NR1p2Pp/2PN1K1P/5P2/2nQ4 w - - 0 1)
Anonymous
Source?, 1940
#2
11 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bh2
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bf4
- 2.Rxd4#
- 1...Bd6
- 2.Rxd4#
- 1...Bc7
- 2.Rxd4#
- 1...Bb8
- 2.Rxd4#
- 1...Sa2
- 2.Qb3#
- 1...Se2
- 2.Qb3#
- 1...Sb3
- 2.Qxb3#
- 1...Sxd3
- 2.Qb3#
- 1...Sb6
- 2.Sxb6#
- 1...Sd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...dxc3
- 2.Sf4#
- 1...bxa4
- 2.c4#
- 1...Bh2
- Tries
- 1.Sf4+?
- 1...Bxf4
- 2.Qxd4#
- 1...gxf4!
- 1...Bxf4
- 1.Qc2?
- 1...Sxd3
- 2.Qb3#
- 2.Qa2#
- 1...bxa4
- 2.c4#
- 1...Sb6
- 2.Sxb6#
- 1...Bh2
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bf4
- 2.Rxd4#
- 1...Bd6
- 2.Rxd4#
- 1...Bc7
- 2.Rxd4#
- 1...Bb8
- 2.Rxd4#
- 1...Sa2
- 2.Qb3#
- 2.Qxa2#
- 1...Se2
- 2.Qb3#
- 2.Qa2#
- 1...Sb3
- 2.Qxb3#
- 1...Sd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...dxc3!
- 1...Sxd3
- 1.Qe2?
- threat
- 2.Qe4#
- 1...Sd6
- 2.Sb6#
- 1...Sxe2!
- threat
- 1.Qxc1?
- 1...bxa4
- 2.c4#
- 1...Sb6
- 2.Sxb6#
- 1...Bh2
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bf4
- 2.Rxd4#
- 1...Bd6
- 2.Rxd4#
- 1...Bc7
- 2.Rxd4#
- 1...Bb8
- 2.Rxd4#
- 1...Sd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...dxc3!
- 1...bxa4
- 1.Qe1?
- threat
- 2.Qe4#
- 1...Sd6
- 2.Sb6#
- 1...Se2!
- threat
- 1.Qd2?
- 1...Sxd3
- 2.Qa2#
- 1...dxc3
- 2.Sf4#
- 1...bxa4
- 2.c4#
- 1...Se2
- 2.Qa2#
- 1...Bh2
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bf4
- 2.Rxd4#
- 1...Bd6
- 2.Rxd4#
- 1...Bc7
- 2.Rxd4#
- 1...Bb8
- 2.Rxd4#
- 1...Sa2
- 2.Qxa2#
- 1...Sb6
- 2.Sxb6#
- 1...Sd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Sb3!
- 1...Sxd3
- 1.Sf4+?
- Keys
- 1.Qh1!
- 1...Sxd3
- 2.Ke2#
- 1...dxc3
- 2.Ke3#
- 1...bxa4
- 2.c4#
- 1...Se2
- 2.Kxe2#
- 1...Bh2
- 2.Rxd4#
- 1...Bg3
- 2.Rxd4#
- 1...Bf4
- 2.Rxd4#
- 1...Bd6
- 2.Rxd4#
- 1...Bc7
- 2.Rxd4#
- 1...Bb8
- 2.Rxd4#
- 1...Sa2
- 2.Ke2#
- 1...Sb3
- 2.Ke2#
- 1...Sb6
- 2.Sxb6#
- 1...Sd6
- 2.Sb6#
- 1...Sa7
- 2.Sb6#
- 1...Se7
- 2.Sb6#
- 1...Sxd3
- 1.Qh1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(f);N_GUARD::R1(H),XP(b)
- S(a);N_GUARD::QAB(A)
- S(a);N_GUARD::QAB(A),XS(a)
- S(a);N_GUARD,XS(D)::QAB(A)
- S(j);N_GUARD::S(G),XS(j)
- S(j);N_GUARD::S(G)
- P(b);XP(C)::QAR(A)+S(D),DCHECK
- P(d);N_GUARD,XS(G)::P(C)
- Tries
- Try
- S(D);CHECK,P_PINP(b)
- Vars
- B(f);XS(D)::QAR1(A),XP(b)
- Refutation
- P(g);XS(D)
- Try
- Q(A);
- Vars
- P(d);N_GUARD,XS(G)::P(C)
- S(j);N_GUARD::S(G),XS(j)
- B(f);N_GUARD::R1(H),XP(b)
- S(a);N_GUARD::QAB(A),XS(a)
- S(j);N_GUARD::S(G)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(j);N_GUARD::S(G)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);XS(a)
- Vars
- P(d);N_GUARD,XS(G)::P(C)
- S(j);N_GUARD::S(G),XS(j)
- B(f);N_GUARD::R1(H),XP(b)
- S(j);N_GUARD::S(G)
- Refutation
- P(b);XP(C)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- S(j);N_GUARD::S(G)
- Refutation
- S(a);
- Try
- Q(A);
- Vars
- S(a);N_GUARD,XS(D)::QAB(A)
- P(b);XP(C)::QAR(A)+S(D),DCHECK
- P(d);N_GUARD,XS(G)::P(C)
- S(a);N_GUARD::QAB(A)
- B(f);N_GUARD::R1(H),XP(b)
- S(a);N_GUARD::QAB(A),XS(a)
- S(j);N_GUARD::S(G),XS(j)
- S(j);N_GUARD::S(G)
- Refutation
- S(a);
- Try
- Actual
- Q(A);
- Vars
- S(a);XS(D)::QAB(A)+K(E)
- P(b);XP(C)::QAB(A)+K(E)
- P(d);N_GUARD,XS(G)::P(C)
- S(a);::QAB(A)+K(E),XS(a)
- B(f);N_GUARD::R1(H),XP(b)
- S(a);::QAB(A)+K(E)
- S(j);N_GUARD::S(G),XS(j)
- S(j);N_GUARD::S(G)
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