MESON Chess Problem Database
Problem Display
PID: 148123 (5K2/5N1B/Q3R3/2P4b/1PPk3r/1R5r/1pnP1PPb/2N5 w - - 0 1)
Goumondy, Claude
Probleemblad, 1968
#2
13 + 7
SOLUTION
- SOUND
- Sets
- 1...Rxb3
- 2.Sxb3#
- 1...Rc3
- 2.dxc3#
- 1...Rd3
- 2.Rxd3#
- 1...Rf3
- 2.Se2#
- 1...Rg3
- 2.Rd6#
- 1...Re4
- 2.Rxe4#
- 1...Rf4
- 2.Rd6#
- 1...Rg4
- 2.Se2#
- 1...Bg1
- 2.Rd6#
- 1...Bg3
- 2.Rd3#
- 1...Bf4
- 2.Re4#
- 1...Bd6+
- 2.Rxd6#
- 1...Be2
- 2.Sxe2#
- 1...Bf3
- 2.Rd3#
- 1...Bg4
- 2.Re4#
- 1...Bg6
- 2.Se2#
- 1...Bxf7
- 2.Se2#
- 1...Se3
- 2.Rd3#
- 1...Rxb3
- Tries
- 1.Rxh3?
- threat
- 2.Sb3#
- 2.Rd3#
- 1...Bd6+
- 2.Rxd6#
- 1...Rxh3
- 2.Re4#
- 1...Sxb4
- 2.Sb3#
- 1...bxc1Q
- 2.Rd3#
- 1...bxc1B
- 2.Rd3#
- 1...bxc1R
- 2.Rd3#
- 1...b1Q
- 2.Rd3#
- 1...b1R
- 2.Rd3#
- 1...Bg3
- 2.Sb3#
- 1...Be2
- 2.Sxe2#
- 2.Sb3#
- 1...Bf3
- 2.Sb3#
- 1...Bg6
- 2.Se2#
- 2.Sb3#
- 1...Sa1
- 2.Rd3#
- 1...Se1
- 2.Sb3#
- 1...Se3
- 2.Sb3#
- 2.fxe3#
- 1...bxc1S!
- threat
- 1.f4?
- threat
- 2.Re4#
- 2.Rd6#
- 1...Rxf4
- 2.Rd6#
- 1...Bxf4
- 2.Re4#
- 1...Bxf7
- 2.Se2#
- 2.Re4#
- 1...Re3
- 2.Rd6#
- 1...Bf3
- 2.Rd3#
- 1...Bg6
- 2.Se2#
- 1...Se3
- 2.Rd3#
- 2.Re4#
- 1...Sxb4!
- threat
- 1.g3?
- threat
- 2.Rd3#
- 2.Rd6#
- 1...Rxg3
- 2.Rd6#
- 1...Bxg3
- 2.Rd3#
- 1...Bxf7
- 2.Se2#
- 2.Rd3#
- 1...bxc1S
- 2.Rd6#
- 1...Be2
- 2.Sxe2#
- 2.Rd6#
- 1...Bf3
- 2.Rd3#
- 1...Bg6
- 2.Se2#
- 1...Se1
- 2.Rd6#
- 1...Se3
- 2.Rd3#
- 2.dxe3#
- 2.fxe3#
- 1...Sxb4!
- threat
- 1.Rxh3?
- Keys
- 1.Rg3!
- threat
- 2.Sb3#
- 2.Rd6#
- 1...Rxg3
- 2.Rd6#
- 1...Bxg3
- 2.Sb3#
- 1...Bxf7
- 2.Se2#
- 2.Sb3#
- 1...Sxb4
- 2.Sb3#
- 1...bxc1Q
- 2.Rd6#
- 1...bxc1S
- 2.Rd6#
- 1...bxc1B
- 2.Rd6#
- 1...bxc1R
- 2.Rd6#
- 1...b1Q
- 2.Rd6#
- 1...b1R
- 2.Rd6#
- 1...Bf3
- 2.Sb3#
- 1...Bg6
- 2.Se2#
- 2.Sb3#
- 1...Sa1
- 2.Rd6#
- 1...Se3
- 2.Sb3#
- 2.fxe3#
- threat
- 1.Rg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 8
- REMOVED MATES = 15
- Sets
- R(d);XR(E)::S(A),XR(d)
- R(d);OGATE::P(B),XR(d)
- R(d);N_GUARD::R1(E),XR(d)
- R(d);P_PINS(K),S_CUTB(g)::S(A)
- R(d);S_CUTB(c)::R(J)
- R(f);N_GUARD::R1(J),XR(f)
- R(f);P_PINS(K),S_CUTB(c)::R(J)
- R(f);S_CUTB(g)::S(A)
- B(c);N_GUARD::R(J)
- B(c);S_CUTR(d)::R1(E)
- B(c);S_CUTR(f)::R1(J)
- B(c);CHECK,N_GUARD::R(J),XB(c)
- B(g);N_GUARD::S(A),XB(g)
- B(g);S_CUTR(d)::R1(E)
- B(g);S_CUTR(f)::R1(J)
- B(g);N_GUARD::S(A)
- B(g);N_GUARD,XS(K)::S(A)
- S(b);S_CUTR(d)::R1(E)
- Tries
- Try
- R(E);XR(d)
- Threat
- DUALS(2)
- Vars
- B(c);CHECK,N_GUARD::R(J),XB(c)
- R(f);N_GUARD,XR(E)::R1(J)
- S(b);XP(F)::S(A)
- P(a);XS(A)::R1(E)
- P(a);::R1(E)
- B(c);::S(A)
- B(g);::S(A)
- S(b);::R1(E)
- S(b);::S(A)
- Refutation
- P(a);XS(A)
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- R(f);P_PINS(K),XP(C)::R(J)
- B(c);XP(C)::R1(J)
- R(d);::R(J)
- B(g);S_CUTR(d)::R1(E)
- B(g);N_GUARD::S(A)
- Refutation
- S(b);XP(F)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- R(d);XP(D)::R(J)
- B(c);XP(D)::R1(E)
- P(a);XS(A)::R(J)
- B(g);::R1(E)
- B(g);N_GUARD::S(A)
- S(b);::R(J)
- Refutation
- S(b);XP(F)
- Try
- Actual
- R(E);
- Threat
- DUALS(2)
- Vars
- R(d);XR(E)::R(J)
- B(c);XR(E)::S(A)
- S(b);XP(F)::S(A)
- P(a);XS(A)::R(J)
- P(a);::R(J)
- B(g);::S(A)
- S(b);::R(J)
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