MESON Chess Problem Database
Problem Display
PID: 23705 (1Q1r1r2/4N3/3n3R/2p1kP1N/8/2n2P2/b2R2pK/6B1 w - - 0 1)
Bruch, Wieland
Degener, Udo
5th Comm., Troll, 1997-1998
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc8
- 2.Qxd6#
- 1...Rde8
- 2.Qxd6#
- 1...Rxf5
- 2.Sc6#
- 1...Bb1
- 2.Re6#
- 1...Be6
- 2.Rxe6#
- 1...Sb1
- 2.Re2#
- 1...Se2
- 2.Rxe2#
- 1...Sa4
- 2.Re2#
- 1...Se4
- 2.f4#
- 1...Sb5
- 2.Re2#
- 1...Sd5
- 2.Re6#
- 1...c4
- 2.Bd4#
- 2.Re6#
- 1...Rc8
- Tries
- 1.Kxg2?
- threat
- 2.Bh2#
- 1...Rxf5
- 2.Sc6#
- 1...Se2
- 2.Rxe2#
- 1...Se4
- 2.f4#
- 1...Sd5
- 2.Re6#
- 1...Rg8+!
- threat
- 1.Kh3?
- threat
- 2.Bh2#
- 1...Rxf5
- 2.Sc6#
- 1...Se2
- 2.Rxe2#
- 1...Se4
- 2.f4#
- 1...Sd5
- 2.Re6#
- 1...Rg8!
- threat
- 1.Re2+?
- 1...Se4
- 2.Rxe4#
- 2.Qb2#
- 2.f4#
- 1...Sxe2!
- 1...Se4
- 1.Rd4?
- threat
- 2.f4#
- 1...Rxf5
- 2.Sc6#
- 1...Se2
- 2.Re4#
- 1...Sd5
- 2.Re4#
- 2.Re6#
- 1...cxd4!
- threat
- 1.Rd5+?
- 1...Sxd5
- 2.Re6#
- 1...Bxd5!
- 1...Sxd5
- 1.Rdxd6?
- threat
- 2.Rd5#
- 2.Rde6#
- 2.Rxd8#
- 1...Rxd6
- 2.Qxd6#
- 1...Rd7
- 2.Rd5#
- 2.Rde6#
- 1...Rc8
- 2.Rd5#
- 2.Rde6#
- 1...Rde8
- 2.Rd5#
- 2.Rde6#
- 2.Rd8#
- 1...Rf6
- 2.Rd5#
- 2.Re6#
- 1...Bd5
- 2.Rxd5#
- 2.Rde6#
- 2.Rxd8#
- 1...Be6
- 2.Rd5#
- 2.Rdxe6#
- 2.Rxd8#
- 2.Rhxe6#
- 1...Se4
- 2.Rd5#
- 2.Rde6#
- 2.f4#
- 1...Sb5
- 2.Rd5#
- 2.Rde6#
- 1...Sd5
- 2.Rxd5#
- 2.Rde6#
- 2.Rhe6#
- 1...Rxb8!
- threat
- 1.Rhxd6?
- threat
- 2.R6d5#
- 2.Re6#
- 2.Rxd8#
- 1...Rxd6
- 2.Qxd6#
- 1...Rxf5
- 2.Sc6#
- 2.Sg6#
- 1...Rd7
- 2.R6d5#
- 2.Re6#
- 1...Rc8
- 2.R6d5#
- 2.Re6#
- 1...Rde8
- 2.R6d5#
- 2.Re6#
- 2.Rd8#
- 1...Rf6
- 2.R6d5#
- 2.Re6#
- 1...Bd5
- 2.R6xd5#
- 2.Re6#
- 2.Rxd8#
- 1...Be6
- 2.R6d5#
- 2.Rxe6#
- 2.Rxd8#
- 1...Se4
- 2.R6d5#
- 2.Re6#
- 2.f4#
- 1...Sb5
- 2.Re2#
- 2.R6d5#
- 2.Re6#
- 1...Sd5
- 2.R6xd5#
- 2.Re6#
- 1...Rxb8!
- threat
- 1.Rf6?
- threat
- 2.Sc6#
- 2.Sg6#
- 1...Rc8
- 2.Sg6#
- 2.Qxd6#
- 1...Rg8
- 2.Sc6#
- 1...Bd5
- 2.Sg6#
- 1...Bf7
- 2.Sc6#
- 1...Rxf6!
- threat
- 1.Qb1?
- threat
- 2.Sc6#
- 2.Sg6#
- 2.f4#
- 1...Rxf5
- 2.Sc6#
- 1...Bxb1
- 2.Re6#
- 1...Sxf5
- 2.Sc6#
- 2.f4#
- 1...Rc8
- 2.Sg6#
- 2.f4#
- 1...Rf6
- 2.Sc6#
- 2.f4#
- 1...Rg8
- 2.Sc6#
- 2.f4#
- 1...Bd5
- 2.Sg6#
- 2.f4#
- 1...Bf7
- 2.Sc6#
- 2.f4#
- 1...Se2
- 2.Sc6#
- 2.Sg6#
- 1...Sce4
- 2.f4#
- 1...Sd5
- 2.Sc6#
- 2.Sg6#
- 2.Re6#
- 1...Sde4
- 2.f4#
- 1...Sxb1!
- threat
- 1.Qb3?
- threat
- 2.Re6#
- 2.Qxc3#
- 1...Sxf5
- 2.Sc6#
- 2.Sg6#
- 2.Re6#
- 1...Rf6
- 2.Qxc3#
- 1...Sb1
- 2.Rd5#
- 2.Re6#
- 1...Sd1
- 2.Rd5#
- 2.Re6#
- 1...Se2
- 2.Rd5#
- 2.Re6#
- 1...Sa4
- 2.Rd5#
- 2.Re6#
- 1...Sce4
- 2.Rd5#
- 2.Re6#
- 2.f4#
- 1...Scb5
- 2.Rd5#
- 2.Re6#
- 1...Sd5
- 2.Rxd5#
- 2.Re6#
- 1...Sc4
- 2.Re6#
- 1...Sde4
- 2.Re6#
- 2.f4#
- 1...Sdb5
- 2.Re6#
- 1...Sb7
- 2.Re6#
- 1...Sf7
- 2.Re6#
- 1...Sc8
- 2.Re6#
- 1...Se8
- 2.Re6#
- 1...Bxb3!
- threat
- 1.Qb4?
- threat
- 2.Qxc3#
- 2.Qf4#
- 2.f4#
- 1...Rxf5
- 2.Sc6#
- 2.Qxc3#
- 1...Sxf5
- 2.Sc6#
- 2.Qf4#
- 2.f4#
- 1...cxb4
- 2.Bd4#
- 1...Bc4
- 2.Qxc3#
- 1...Sb1
- 2.Qf4#
- 2.f4#
- 1...Sd1
- 2.Qf4#
- 2.f4#
- 1...Sa4
- 2.Qf4#
- 2.f4#
- 1...Sce4
- 2.f4#
- 1...Scb5
- 2.Qf4#
- 2.f4#
- 1...Sd5
- 2.Re6#
- 1...Sc4
- 2.Re6#
- 1...Sde4
- 2.f4#
- 1...Sdb5
- 2.Qf4#
- 2.f4#
- 1...Sb7
- 2.Qf4#
- 2.f4#
- 1...Sf7
- 2.Qf4#
- 2.f4#
- 1...Sc8
- 2.Qf4#
- 2.f4#
- 1...Se8
- 2.Qf4#
- 2.f4#
- 1...c4
- 2.Bd4#
- 2.Re6#
- 2.Qxc3#
- 1...Se2!
- threat
- 1.Kxg2?
- Keys
- 1.Qb2!
- threat
- 2.Qxc3#
- 1...Sxf5
- 2.Sc6#
- 1...Sc4
- 2.Re6#
- 1...Se4
- 2.f4#
- 1...Sb5
- 2.Re2#
- 1...Sb7
- 2.Re2#
- 1...Sf7
- 2.Re2#
- 1...Sc8
- 2.Re2#
- 1...Se8
- 2.Re2#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 11
- Sets
- R(g);N_GUARD::QAB1(I),XS(f)
- R(h);SBLOCK,XP(E)::S(H)
- B(a);N_GUARD::R1(G)
- B(a);N_GUARD::R1(G),XB(a)
- S(c);N_GUARD::R(B)
- S(c);N_GUARD::R(B),XS(c)
- S(c);SBLOCK::P(D)
- S(c);S_CUTB(a)::R1(G)
- Tries
- Try
- K(C);P-FLIGHT,XP(b)
- Threat
- B(A)
- Vars
- R(h);SBLOCK,XP(E)::S(H)
- S(c);N_GUARD::R(B),XS(c)
- S(c);SBLOCK::P(D)
- S(c);S_CUTB(a)::R1(G)
- Refutation
- R(h);CHECK
- Try
- K(C);P-FLIGHT
- Threat
- B(A)
- Vars
- R(h);SBLOCK,XP(E)::S(H)
- S(c);N_GUARD::R(B),XS(c)
- S(c);SBLOCK::P(D)
- S(c);S_CUTB(a)::R1(G)
- Refutation
- R(h);
- Try
- R(B);CHECK
- Refutation
- S(c);XR(B)
- Try
- R(B);
- Threat
- P(D)
- Vars
- R(h);SBLOCK,XP(E)::S(H)
- S(c);N_GUARD::R1(B)
- Refutation
- P(d);XR(B)
- Try
- R(B);CHECK
- Vars
- S(c);XR(B)::R1(G)
- Refutation
- B(a);XR(B)
- Try
- R(B);XS(f)
- Threat
- DUALS(3)
- Vars
- R(g);OGATE,P_SPINR(g),XR(B)::QAB1(I),XR(g)
- Refutation
- R(g);XQ(I)
- Try
- R(G);XS(f)
- Threat
- DUALS(3)
- Vars
- R(g);OGATE,P_SPINR(g),XR(G)::QAB1(I),XR(g)
- Refutation
- R(g);XQ(I)
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(h);::S(H)
- B(a);::S(H)
- Refutation
- R(h);XR(G)
- Try
- Q(I);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- R(h);XP(E)::S(H)
- B(a);N_GUARD,XQ(I)::R1(G)
- S(c);::P(D)
- S(f);::P(D)
- Refutation
- S(c);XQ(I)
- Try
- Q(I);N_PINS(f)
- Threat
- DUALS(2)
- Vars
- R(h);::QAB(I),XS(c)
- S(f);::R1(G)
- Refutation
- B(a);XQ(I)
- Try
- Q(I);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- P(d);N_GUARD,XQ(I)::B(A)
- B(a);::QAB(I),XS(c)
- S(c);::P(D)
- S(c);S_CUTB(a)::R1(G)
- S(f);S_CUTB(a)::R1(G)
- S(f);::P(D)
- Refutation
- S(c);
- Try
- Actual
- Q(I);N_PINS(f),P_PINS(c)
- Threat
- QAB(I),XS(c)
- Vars
- S(f);SBLOCK,XP(E)::S(H)
- S(f);S_CUTB(a)::R1(G)
- S(f);SBLOCK::P(D)
- S(f);N_GUARD::R(B)
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