MESON Chess Problem Database
Problem Display
PID: 3029 (4R3/3p2pp/1Pbk2p1/1ppP2R1/3NP3/8/1N5p/4Bn1K w - - 0 1)
Gevers, Raymond
Source?, 1917
#2
9 + 10
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Bxd5
- 2.Rxd5#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...Sg3+
- 2.Bxg3#
- 1...b4
- 2.Sc4#
- 1...cxd4
- 2.Bb4#
- 1...c4
- 2.Bb4#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...Bxd5
- Tries
- 1.Sd1?
- 1...Sg3+
- 2.Bxg3#
- 1...Bxd5
- 2.Rxd5#
- 1...cxd4
- 2.Bb4#
- 1...c4
- 2.Bb4#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...b4!
- 1...Sg3+
- 1.Sd3?
- 1...Sg3+
- 2.Bxg3#
- 1...Bxd5
- 2.Rxd5#
- 1...cxd4
- 2.Bb4#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...c4
- 2.Bb4#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...b4!
- 1...Sg3+
- 1.Sxc6?
- 1...Sg3+
- 2.Bxg3#
- 1...c4
- 2.Bb4#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...b4
- 2.Sc4#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...dxc6!
- 1...Sg3+
- 1.Rg4?
- 1...Sg3+
- 2.Bxg3#
- 1...cxd4
- 2.Bb4#
- 1...c4
- 2.Bb4#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...b4
- 2.Sc4#
- 1...g5
- 2.Sf5#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...Bxd5!
- 1...Sg3+
- 1.Rh5?
- 1...Sg3+
- 2.Bxg3#
- 1...Bxd5
- 2.Rxd5#
- 1...cxd4
- 2.Bb4#
- 1...gxh5
- 2.Sf5#
- 1...c4
- 2.Bb4#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...b4
- 2.Sc4#
- 1...g5
- 2.Sf5#
- 1...h6!
- 1...Sg3+
- 1.Sd1?
- Keys
- 1.Rg2!
- 1...Sg3+
- 2.Bxg3#
- 1...Bxd5
- 2.e5#
- 1...cxd4
- 2.Bb4#
- 1...c4
- 2.Bb4#
- 1...Bb7
- 2.Sxb5#
- 1...Ba8
- 2.Sxb5#
- 1...Sd2
- 2.Bg3#
- 1...Se3
- 2.Bg3#
- 1...b4
- 2.Sc4#
- 1...g5
- 2.Sf5#
- 1...h5
- 2.Rxg6#
- 1...h6
- 2.Rxg6#
- 1...Sg3+
- 1.Rg2!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(e);OGATE,P_PINP(E),XP(F)::R1(G),XB(e)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- S(a);CHECK,N_GUARD::B(A),XS(a)
- P(c);N_GUARD::S(C)
- P(d);OGATEB,XS(D)::B(A)
- P(d);OGATEB::B(A)
- P(j);N_GUARD::R(G),XP(g)
- Tries
- Try
- S(C);
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- B(e);OGATE,P_PINP(E),XP(F)::R1(G),XB(e)
- P(d);OGATEB,XS(D)::B(A)
- P(d);OGATEB::B(A)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- P(j);N_GUARD::R(G),XP(g)
- Refutation
- P(c);
- Try
- S(C);
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- B(e);OGATE,P_PINP(E),XP(F)::R1(G),XB(e)
- P(d);OGATEB,XS(D)::B(A)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- P(d);OGATEB::B(A)
- P(j);N_GUARD::R(G),XP(g)
- Refutation
- P(c);
- Try
- S(D);XB(e)
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- P(d);OGATEB::B(A)
- S(a);N_GUARD::B(A)
- P(c);N_GUARD::S(C)
- P(j);N_GUARD::R(G),XP(g)
- Refutation
- P(h);XS(D)
- Try
- R(G);
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- P(d);OGATEB,XS(D)::B(A)
- P(d);OGATEB::B(A)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- P(c);N_GUARD::S(C)
- P(g);N_GUARD::S(D)
- P(j);N_GUARD::R(G),XP(g)
- Refutation
- B(e);P_PINP(E),XP(F)
- Try
- R(G);
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- B(e);OGATE,P_PINP(E),XP(F)::R1(G),XB(e)
- P(d);OGATEB,XS(D)::B(A)
- P(g);N_GUARD,XR(G)::S(D)
- P(d);OGATEB::B(A)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- P(c);N_GUARD::S(C)
- P(g);N_GUARD::S(D)
- Refutation
- P(j);
- Try
- Actual
- R(G);
- Vars
- S(a);CHECK,N_GUARD::B(A),XS(a)
- B(e);SBLOCK,XP(F)::P(E)
- P(d);OGATEB,XS(D)::B(A)
- P(d);OGATEB::B(A)
- B(e);N_GUARD::S(D),XP(c)
- S(a);N_GUARD::B(A)
- P(c);N_GUARD::S(C)
- P(g);N_GUARD::S(D)
- P(j);N_GUARD::R(G),XP(g)
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