MESON Chess Problem Database
Problem Display
PID: 260922 (6Qn/B1PKPp2/2R1Rp1b/3k3r/1p5r/n4P2/N1p5/5N2 w - - 0 1)
Kupper, Josef
Neue Zurcher Zeitung, 1953
#2
10 + 10
| 6490 | yacpdb | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rh1
- 2.Sxb4#
- 1...Rh2
- 2.Sxb4#
- 1...Rh3
- 2.Sxb4#
- 1...Rc4
- 2.Rcd6#
- 1...Rd4
- 2.Rc5#
- 1...Re4
- 2.fxe4#
- 1...Rf4
- 2.Se3#
- 1...Re5
- 2.Red6#
- 1...Rg5
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bf4
- 2.Sxb4#
- 1...Bg7
- 2.Se3#
- 1...Bf8
- 2.Se3#
- 1...Sc4
- 2.Sxb4#
- 1...b3
- 2.Sc3#
- 1...fxe6
- 2.Qxe6#
- 1...Rh1
- Tries
- 1.Kc8?
- threat
- 2.Qd8#
- 1...fxe6
- 2.Qxe6#
- 1...Bf4
- 2.Sxb4#
- 1...Bf8
- 2.Se3#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.Re4?
- threat
- 2.Sxb4#
- 2.Rc5#
- 2.Rd6#
- 1...c1Q
- 2.Sxb4#
- 2.Rd6#
- 1...c1R
- 2.Sxb4#
- 2.Rd6#
- 1...Bd2
- 2.Rc5#
- 2.Rd6#
- 1...Be3
- 2.Sxe3#
- 2.Sxb4#
- 2.Rd6#
- 1...Bf4
- 2.Sxb4#
- 2.Rc5#
- 1...Sc4
- 2.Sxb4#
- 2.Rc5#
- 1...Sb5
- 2.Sxb4#
- 2.Rc5#
- 1...b3
- 2.Sc3#
- 2.Sb4#
- 2.Rc5#
- 2.Rd6#
- 1...Rxe4!
- threat
- 1.Qg3?
- threat
- 2.Red6#
- 2.Qd6#
- 1...fxe6
- 2.Qd6#
- 1...Rf4
- 2.Se3#
- 1...Re5
- 2.Red6#
- 1...Bf4
- 2.Sxb4#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.Qg4?
- threat
- 2.Sxb4#
- 2.Rc5#
- 2.Rcd6#
- 1...fxe6
- 2.Rc5#
- 2.Qxe6#
- 1...c1Q
- 2.Sxb4#
- 2.Rcd6#
- 1...c1R
- 2.Sxb4#
- 2.Rcd6#
- 1...Bd2
- 2.Rc5#
- 2.Rcd6#
- 1...Be3
- 2.Sxe3#
- 2.Sxb4#
- 2.Rcd6#
- 1...Bf4
- 2.Sxb4#
- 1...Sc4
- 2.Sxb4#
- 2.Rc5#
- 1...Sb5
- 2.Sxb4#
- 2.Rc5#
- 1...b3
- 2.Sc3#
- 2.Sb4#
- 2.Rc5#
- 2.Rcd6#
- 1...Rxg4!
- threat
- 1.Qg5+?
- 1...Rxg5
- 2.Se3#
- 1...fxg5
- 2.Se3#
- 1...f5
- 2.Se3#
- 1...Bxg5!
- 1...Rxg5
- 1.Qa8?
- threat
- 2.Rxc2#
- 2.Rc3#
- 1...c1Q
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 1...c1S
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 1...c1B
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 1...c1R
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 1...Rc4
- 2.Rcd6#
- 1...Sc4
- 2.Sxb4#
- 2.Ra6#
- 2.Rcd6#
- 1...fxe6!
- threat
- 1.f4?
- threat
- 2.Se3#
- 2.Sxb4#
- 2.Qg2#
- 1...Rxf4
- 2.Se3#
- 1...Bxf4
- 2.Sxb4#
- 2.Qg2#
- 1...fxe6
- 2.Qxe6#
- 2.Qg2#
- 1...c1Q
- 2.Sxb4#
- 2.Qg2#
- 1...c1B
- 2.Sxb4#
- 2.Qg2#
- 1...Rh2
- 2.Se3#
- 2.Sxb4#
- 1...Rh3
- 2.Sxb4#
- 1...Rg4
- 2.Se3#
- 2.Sxb4#
- 1...Rg5
- 2.Se3#
- 2.Sxb4#
- 1...Bg5
- 2.Se3#
- 2.Sxb4#
- 1...Bg7
- 2.Se3#
- 2.Sxb4#
- 1...Sc4
- 2.Sxb4#
- 2.Qg2#
- 1...Sg6
- 2.Se3#
- 2.Sxb4#
- 1...b3
- 2.Se3#
- 2.Sc3#
- 2.Sb4#
- 2.Qg2#
- 1...Re5!
- threat
- 1.c8Q?
- threat
- 2.Rcd6#
- 1...fxe6
- 2.Qxe6#
- 1...Bf4
- 2.Sxb4#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.c8R?
- threat
- 2.Rcd6#
- 1...fxe6
- 2.Qxe6#
- 1...Bf4
- 2.Sxb4#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.e8Q?
- threat
- 2.Red6#
- 1...fxe6
- 2.Qgxe6#
- 2.Qexe6#
- 1...Bf4
- 2.Sxb4#
- 1...Bf8
- 2.Se3#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.e8R?
- threat
- 2.Red6#
- 1...fxe6
- 2.Qxe6#
- 1...Bf4
- 2.Sxb4#
- 1...Bf8
- 2.Se3#
- 1...Sc4
- 2.Sxb4#
- 1...Sb5!
- threat
- 1.Kc8?
- Keys
- 1.Qg2!
- threat
- 2.f4#
- 1...Rh2
- 2.Sxb4#
- 1...Rh3
- 2.Sxb4#
- 1...Rc4
- 2.Rcd6#
- 1...Rd4
- 2.Rc5#
- 1...Re4
- 2.fxe4#
- 1...Rf4
- 2.Se3#
- 1...Rg4
- 2.fxg4#
- 1...Re5
- 2.Red6#
- 1...Rg5
- 2.Se3#
- 1...Bf4
- 2.Sxb4#
- threat
- 1.Qg2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 7
- Sets
- R(d);N_GUARD::S(B),XP(c)
- R(d);SBLOCK::R1(D)
- R(d);OGATE::P(C),XR(d)
- R(d);S_CUTB(h)::S(A)
- R(f);SBLOCK::R1(E)
- R(f);S_CUTB(h)::S(A)
- B(h);N_GUARD::S(A),XB(h)
- B(h);S_CUTR(d)::S(B),XP(c)
- B(h);N_GUARD::S(A)
- S(b);S_CUTR(d)::S(B),XP(c)
- P(c);N_GUARD::S(B)
- P(i);OGATE,P_SPINP(i),XR(E)::QAB1(J),XP(i)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- QAR(J)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB1(J),XP(i)
- B(h);S_CUTR(d)::S(B),XP(c)
- B(h);N_GUARD::S(A)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- R(E);P_PINP(i)
- Threat
- DUALS(3)
- Refutation
- R(d);XR(E)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- P(i);XR(E)::QAR1(J)
- R(d);S_CUTB(h)::S(A)
- R(f);::R1(E)
- B(h);S_CUTR(d)::S(B),XP(c)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- Q(J);
- Threat
- DUALS(3)
- Vars
- B(h);::S(B),XP(c)
- Refutation
- R(d);XQ(J)
- Try
- Q(J);CHECK
- Vars
- R(f);XQ(J)::S(A)
- P(g);XQ(J)::S(A)
- P(g);P_SPINP(g)::S(A)
- Refutation
- B(h);XQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- R(d);SBLOCK::QAB(J)+R(D),DCHECK
- Refutation
- P(i);XR(E)
- Try
- P(C);
- Threat
- DUALS(3)
- Vars
- R(d);XP(C)::S(A)
- R(d);::S(B),XP(c)
- Refutation
- R(f);
- Try
- P(G);
- Threat
- R1(D)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB1(J),XP(i)
- B(h);S_CUTR(d)::S(B),XP(c)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- P(G);
- Threat
- R1(D)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB1(J),XP(i)
- B(h);S_CUTR(d)::S(B),XP(c)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- P(I);
- Threat
- R1(E)
- Vars
- B(h);S_CUTR(d)::S(B),XP(c)
- B(h);N_GUARD::S(A)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- P(I);
- Threat
- R1(E)
- Vars
- P(i);OGATE,P_SPINP(i),XR(E)::QAB1(J),XP(i)
- B(h);S_CUTR(d)::S(B),XP(c)
- B(h);N_GUARD::S(A)
- S(b);S_CUTR(d)::S(B),XP(c)
- Refutation
- S(b);
- Try
- Actual
- Q(J);
- Threat
- QAB(J)+P(C)
- Vars
- R(d);N_GUARD::S(B),XP(c)
- R(d);SBLOCK::R1(D)
- R(d);OGATE::P(C),XR(d)
- R(d);S_CUTB(h)::S(A)
- R(d);OGATE::QAB(J)+P(C),XR(d)
- R(f);SBLOCK::R1(E)
- R(f);S_CUTB(h)::S(A)
- B(h);S_CUTR(d)::S(B),XP(c)
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