MESON Chess Problem Database
Problem Display
PID: 245206 (2R5/7B/2ppp3/2BkNpK1/1Pp2RN1/1n2pp2/3b4/3Q1r2 w - - 0 1)
Segers, Marcel
Scacchi e Scienze Applicate, 1993
#2
9 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Qxf3#
- 1...Rg1
- 2.Qxf3#
- 1...Rh1
- 2.Qxf3#
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 1...f2
- 2.Qf3#
- 1...c3
- 2.Qxb3#
- 1...dxc5
- 2.Rd8#
- 1...dxe5
- 2.Sxe3#
- 2.Sf6#
- 2.Rd8#
- 1...Re1
- Tries
- 1.Kf6?
- threat
- 2.Sxe3#
- 1...fxg4
- 2.Be4#
- 1...dxc5
- 2.Rd8#
- 1...Re1
- 2.Qxf3#
- 1...Sd4
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 1...Rxd1!
- threat
- 1.Sxf3?
- threat
- 2.Sxe3#
- 2.Sf6#
- 1...Rxd1
- 2.Sf6#
- 1...Rxf3
- 2.Qxf3#
- 1...fxg4
- 2.Be4#
- 1...dxc5
- 2.Rd8#
- 1...e5
- 2.Bg8#
- 1...Re1
- 2.Sf6#
- 1...Sd4
- 2.Sf6#
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 2.Sf6#
- 1...Rg1!
- threat
- 1.Sxc4?
- threat
- 2.Scxe3#
- 2.Sb6#
- 2.Sgxe3#
- 2.Sf6#
- 1...Rxd1
- 2.Sb6#
- 2.Sf6#
- 1...dxc5
- 2.Sgxe3#
- 2.Sf6#
- 2.Rd8#
- 1...Sd4
- 2.Sb6#
- 2.Rxd4#
- 1...e5
- 2.Bg8#
- 1...Re1
- 2.Sb6#
- 2.Sf6#
- 2.Qxf3#
- 1...Rg1
- 2.Sxe3#
- 2.Sb6#
- 2.Qxf3#
- 1...e2
- 2.Sce3#
- 2.Sb6#
- 2.Sge3#
- 2.Sf6#
- 1...fxg4!
- threat
- 1.Sxc6?
- threat
- 2.Sxe3#
- 2.Sf6#
- 2.Se7#
- 1...Rxd1
- 2.Sf6#
- 2.Se7#
- 1...fxg4
- 2.Be4#
- 1...e5
- 2.Bg8#
- 1...Re1
- 2.Sf6#
- 2.Se7#
- 2.Qxf3#
- 1...Rg1
- 2.Se7#
- 2.Qxf3#
- 1...Sd4
- 2.Sf6#
- 2.Se7#
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 2.Sf6#
- 2.Se7#
- 1...dxc5!
- threat
- 1.Sg6?
- threat
- 2.Sxe3#
- 2.Sf6#
- 2.Se7#
- 1...Rxd1
- 2.Sf6#
- 2.Se7#
- 1...dxc5
- 2.Rd8#
- 1...e5
- 2.Bg8#
- 1...Re1
- 2.Sf6#
- 2.Se7#
- 2.Qxf3#
- 1...Rg1
- 2.Se7#
- 2.Qxf3#
- 1...Sd4
- 2.Sf6#
- 2.Se7#
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 2.Sf6#
- 2.Se7#
- 1...fxg4!
- threat
- 1.Sd7?
- threat
- 2.Sxe3#
- 2.Sgf6#
- 2.Sb6#
- 2.Sdf6#
- 1...Rxd1
- 2.Sgf6#
- 2.Sb6#
- 2.Sdf6#
- 1...fxg4
- 2.Be4#
- 1...e5
- 2.Bg8#
- 1...Re1
- 2.Sgf6#
- 2.Sb6#
- 2.Sdf6#
- 2.Qxf3#
- 1...Rg1
- 2.Sb6#
- 2.Sf6#
- 2.Qxf3#
- 1...Sd4
- 2.Sgf6#
- 2.Sb6#
- 2.Sdf6#
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 2.Sgf6#
- 2.Sb6#
- 2.Sdf6#
- 1...dxc5!
- threat
- 1.Sf7?
- threat
- 2.Sxe3#
- 2.Sf6#
- 1...Rxd1
- 2.Sf6#
- 1...fxg4
- 2.Be4#
- 1...Re1
- 2.Sf6#
- 2.Qxf3#
- 1...Rg1
- 2.Qxf3#
- 1...Sd4
- 2.Sf6#
- 2.Rxd4#
- 1...e2
- 2.Se3#
- 2.Sf6#
- 1...e5!
- threat
- 1.Qxb3?
- threat
- 2.Rd4#
- 2.Qxc4#
- 1...Bxb4
- 2.Qxc4#
- 1...cxb3
- 2.Rd4#
- 1...dxc5
- 2.Rd8#
- 1...dxe5
- 2.Sf6#
- 2.Rd8#
- 2.Qxc4#
- 1...Rc1
- 2.Rd4#
- 1...Bc3
- 2.Qxc4#
- 1...e2
- 2.Qxc4#
- 1...fxg4!
- threat
- 1.Qxf1?
- threat
- 2.Qxc4#
- 2.Qxf3#
- 1...Bxb4
- 2.Qxc4#
- 1...Sxc5
- 2.Qxc4#
- 1...dxc5
- 2.Rd8#
- 1...dxe5
- 2.Sf6#
- 2.Rd8#
- 2.Qxc4#
- 1...Sd4
- 2.Rxd4#
- 2.Qxc4#
- 1...Sa5
- 2.Rd4#
- 2.Qxf3#
- 1...e2
- 2.Qxf3#
- 1...f2
- 2.Qg2#
- 2.Qxc4#
- 2.Qh1#
- 1...c3
- 2.Qc4#
- 2.Qxf3#
- 1...fxg4!
- threat
- 1.Qxd2+?
- 1...Sxd2
- 2.Rd4#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...exd2!
- 1...Sxd2
- 1.Kf6?
- Keys
- 1.Sd3!
- threat
- 2.Sf6#
- 1...cxd3
- 2.Qxb3#
- 1...fxg4
- 2.Be4#
- 1...dxc5
- 2.Rd8#
- 1...e5
- 2.Bg8#
- 1...Rg1
- 2.Qxf3#
- 1...Bc3
- 2.Sxe3#
- threat
- 1.Sd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::QAB(A),XP(e)
- R(a);N_GUARD,P_PINS(D)::QAB(A),XP(e)
- S(c);N_GUARD::R1(C)
- S(c);N_GUARD,N_SPINB(b)::R1(C),XS(c)
- P(e);S_CUTR(a)::QAB(A)
- P(f);OGATEB::QAB(A),XS(c)
- P(j);OGATEB,XB(E)::R(I)
- Tries
- Try
- K(G);S_FLIGHT
- Threat
- S(D),XP(d)
- Vars
- P(h);OGATE,XS(D)::B(H)
- P(j);OGATEB,XB(E)::R(I)
- R(a);N_GUARD::QAB(A),XP(e)
- S(c);N_GUARD,N_SPINB(b)::R1(C),XS(c)
- P(d);::S(D)
- Refutation
- R(a);N_SPINB(b),XQ(A)
- Try
- S(F);XP(e)
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINB(b),XQ(A)::S(D)
- R(a);OGATE,XS(F)::QAB(A),XR(a)
- P(h);OGATE,XS(D)::B(H)
- P(j);OGATEB,XB(E)::R(I)
- P(k);OGATEB::B(H)
- R(a);::S(D)
- Refutation
- R(a);P_PINS(D)
- Try
- S(F);XP(f)
- Threat
- DUALS(4)
- Vars
- P(k);OGATEB::B(H)
- Refutation
- P(h);XS(D)
- Try
- S(F);XP(i)
- Threat
- DUALS(3)
- Vars
- P(h);OGATE,XS(D)::B(H)
- P(k);OGATEB::B(H)
- Refutation
- P(j);XB(E)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- P(j);OGATEB,XB(E)::R(I)
- P(k);OGATEB::B(H)
- Refutation
- P(h);XS(D)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- P(h);OGATE,XS(D)::B(H)
- P(k);OGATEB::B(H)
- Refutation
- P(j);XB(E)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);N_SPINB(b),XQ(A)::S(D)
- P(h);OGATE,XS(D)::B(H)
- R(a);N_GUARD,P_PINS(D)::QAB(A),XP(e)
- Refutation
- P(k);
- Try
- Q(A);N_PINB(b),P_PINP(f),XS(c)
- Threat
- DUALS(2)
- Vars
- B(b);XP(B)::QAB1(A),XP(f)
- P(f);N_SPINP(f),XQ(A)::R1(C)
- P(j);OGATEB,XB(E)::R(I)
- R(a);::R1(C)
- B(b);::QAB1(A),XP(f)
- P(d);P_PINR(C)::QAB1(A),XP(f)
- Refutation
- P(h);XS(D)
- Try
- Q(A);N_PINB(b),XR(a)
- Threat
- DUALS(2)
- Vars
- B(b);XP(B)::QAB1(A),XP(f)
- S(c);XB(E)::QAB1(A),XP(f)
- P(j);OGATEB,XB(E)::R(I)
- P(d);P_PINR(C)::QAB(A),XP(e)
- Refutation
- P(h);XS(D)
- Try
- Q(A);CHECK,XB(b)
- Vars
- S(c);N_GUARD,XQ(A)::R1(C)
- Refutation
- P(d);XQ(A)
- Try
- Actual
- S(F);N_PINB(b)
- Threat
- S(D)
- Vars
- P(f);OGATEB,XS(F)::QAB(A),XS(c)
- P(h);OGATE,XS(D)::B(H)
- P(j);OGATEB,XB(E)::R(I)
- P(k);OGATEB::B(H)
- R(a);N_GUARD,P_PINS(D)::QAB(A),XP(e)
- B(b);N_GUARD::S(D),XP(d)
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