MESON Chess Problem Database
Problem Display
PID: 232541 (1K5b/4Q3/N2p4/3p2pR/2BkN2n/BPpb3R/5Pp1/3r4 w - - 0 1)
Groth, Reinhard
Freie Presse, 2008
#2
10 + 10
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Rxd3#
- 1...Rb1
- 2.Rxd3#
- 1...Rc1
- 2.Rxd3#
- 1...Re1
- 2.Rxd3#
- 1...Rf1
- 2.Rxd3#
- 1...Rg1
- 2.Rxd3#
- 1...Rh1
- 2.Rxd3#
- 1...c2
- 2.Bb2#
- 1...dxe4
- 2.Qxd6#
- 1...g4
- 2.Rxd5#
- 1...Ra1
- Tries
- 1.Sd2?
- threat
- 2.Rxd3#
- 2.Qe3#
- 1...Rxd2
- 2.Qe3#
- 1...Bxc4
- 2.Qe3#
- 1...cxd2
- 2.Bb2#
- 2.Rxd3#
- 1...dxc4
- 2.Qxd6#
- 1...c2
- 2.Bb2#
- 2.Rxd3#
- 1...Re1
- 2.Rxd3#
- 1...Bb1
- 2.Qe3#
- 1...Bf1
- 2.Qe3#
- 1...Bc2
- 2.Qe3#
- 1...Be2
- 2.Qe3#
- 1...Bf5
- 2.Qe3#
- 1...Bg6
- 2.Qe3#
- 1...Bh7
- 2.Qe3#
- 1...Be5
- 2.Rxd3#
- 2.Qa7#
- 1...Sf3
- 2.Sxf3#
- 2.Qe3#
- 1...Sf5
- 2.Sf3#
- 2.Rxd3#
- 1...Be4!
- threat
- 1.Sxd6?
- threat
- 2.Sb5#
- 2.Bc5#
- 2.Qe3#
- 1...Bxc4
- 2.Bc5#
- 2.Qe3#
- 1...c2
- 2.Sb5#
- 2.Bb2#
- 1...Be4
- 2.Sb5#
- 2.Bc5#
- 1...Re1
- 2.Sb5#
- 2.Bc5#
- 2.Rxd3#
- 1...Be5
- 2.Bc5#
- 2.Qa7#
- 1...Sf5
- 2.Sb5#
- 2.Bc5#
- 1...dxc4!
- threat
- 1.Bxd6?
- threat
- 2.Bc5#
- 1...Be5
- 2.Qxe5#
- 1...dxc4!
- threat
- 1.Qxg5?
- threat
- 2.Qe3#
- 2.Qxd5#
- 1...Kxe4
- 2.R5xh4#
- 2.Qe3#
- 2.Qxh4#
- 2.Qg4#
- 1...Bxc4
- 2.Qe3#
- 1...Bxe4
- 2.Qe3#
- 1...dxc4
- 2.Qe3#
- 2.Qd5#
- 1...dxe4
- 2.Qe3#
- 2.Qd5#
- 1...Re1
- 2.Qxd5#
- 1...Be5
- 2.Qe3#
- 1...Sf5!
- threat
- 1.Qf6+?
- 1...Kxe4
- 2.Re3#
- 1...Bxf6!
- 1...Kxe4
- 1.Sd2?
- Keys
- 1.Sxg5!
- threat
- 2.Qe3#
- 1...dxc4
- 2.Qxd6#
- 1...c2
- 2.Bb2#
- 1...Be4
- 2.Se6#
- 1...Re1
- 2.Rxd3#
- 1...Be5
- 2.Qa7#
- 1...Sf5
- 2.Sf3#
- threat
- 1.Sxg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD::R1(D),XB(d)
- R(a);N_GUARD,P_PINP(C)::R1(D),XB(d)
- P(c);OGATEB::B(B)
- P(g);OGATEB,SBLOCK,XS(F)::QAR2(I),XP(i)
- P(h);OGATE::R1(G),XP(g)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(a);XS(F)::QAB1(I)
- B(d);XB(E)::QAB1(I)
- P(g);OGATEB,XB(E)::QAR2(I),XP(i)
- R(a);::R1(D),XB(d)
- B(d);::QAB1(I)
- Refutation
- B(d);
- Try
- S(F);XP(i)
- Threat
- DUALS(3)
- Refutation
- P(g);XB(E)
- Try
- B(B);XP(i)
- Threat
- B(B)
- Vars
- B(j);N_GUARD,P_PINB(B)::QAB1(I),XB(j)
- Refutation
- P(g);XB(E)
- Try
- Q(I);XP(h)
- Threat
- DUALS(2)
- Vars
- B(d);XB(E)::QAB1(I)
- B(d);XS(F)::QAB1(I)
- R(a);::QAR1(I),XP(g)
- B(j);::QAB1(I)
- Refutation
- S(f);
- Try
- Q(I);CHECK
- Vars
- K(e);P-FLIGHT,XS(F)::R1(D)
- Refutation
- B(j);XQ(I)
- Try
- Actual
- S(F);XP(h)
- Threat
- QAB1(I)
- Vars
- P(g);OGATEB,XB(E)::QAR2(I),XP(i)
- P(c);OGATEB::B(B)
- B(d);SBLOCK::S(F)
- R(a);N_GUARD::R1(D),XB(d)
- B(j);SBLOCK::QAB(I)
- S(f);N_GUARD::S(F)
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