MESON Chess Problem Database
Problem Display
PID: 9978 (3r1Bb1/8/N1P2R2/1kP2Rn1/2p3pr/3P4/Q1N4b/5K1B w - - 0 1)
van Dijk, Nils Gustav Gerard
Die Schwalbe, 1961
#2
11 + 8
| 3147 | Chess Problems: Introduction to an Art | 1963 |
SOLUTION
- SOUND
- Sets
- 1...Rd4
- 2.Sxd4#
- 1...Rd5
- 2.dxc4#
- 1...Rd6
- 2.Sc7#
- 1...Ra8
- 2.Sd4#
- 1...Rb8
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Re8
- 2.Sd4#
- 1...Rxf8
- 2.Sd4#
- 1...Bg1
- 2.Sc7#
- 1...Bd6
- 2.Sd4#
- 1...Bc7
- 2.Sxc7#
- 1...Bd5
- 2.Sd4#
- 1...Bh7
- 2.dxc4#
- 1...Se6
- 2.dxc4#
- 1...Sf7
- 2.dxc4#
- 1...g3
- 2.Sc7#
- 1...Rd4
- Tries
- 1.Bd6?
- threat
- 2.Sd4#
- 2.Sc7#
- 1...Rxd6
- 2.Sc7#
- 1...Bxd6
- 2.Sd4#
- 1...Bd5
- 2.Sd4#
- 1...Se4
- 2.Sd4#
- 1...Rh7
- 2.Sd4#
- 1...Rd7
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Bg1
- 2.Sc7#
- 1...Be5
- 2.Sc7#
- 1...Se6
- 2.dxc4#
- 1...g3
- 2.Sc7#
- 1...Sf3!
- threat
- 1.Rd5?
- threat
- 2.Sd4#
- 2.dxc4#
- 1...Rxd5
- 2.dxc4#
- 1...Bxd5
- 2.Sd4#
- 1...cxd3
- 2.Sd4#
- 1...Rd6
- 2.Sd4#
- 1...Bd6
- 2.Sd4#
- 1...Be6
- 2.Sd4#
- 1...Bg1
- 2.Sc7#
- 2.dxc4#
- 1...Be5
- 2.dxc4#
- 1...Sf3
- 2.dxc4#
- 1...c3
- 2.Sd4#
- 1...g3
- 2.Sc7#
- 1...Se6!
- threat
- 1.Rd6?
- threat
- 2.Sd4#
- 2.Sc7#
- 1...Rxd6
- 2.Sc7#
- 1...Bxd6
- 2.Sd4#
- 1...Rh7
- 2.Sd4#
- 1...Rd7
- 2.Sd4#
- 1...Rc8
- 2.Sd4#
- 1...Bg1
- 2.Sc7#
- 1...Bd5
- 2.Sd4#
- 1...Sf3
- 2.Sc7#
- 1...Se6
- 2.dxc4#
- 1...g3
- 2.Sc7#
- 1...Be5!
- threat
- 1.Qb1+?
- 1...Ka4
- 2.Qb4#
- 1...Kxa6
- 2.Qb6#
- 1...Ka5!
- 1...Ka4
- 1.Qb2+?
- 1...Ka4
- 2.Qb4#
- 1...Kxa6
- 2.Qb6#
- 1...Ka5!
- 1...Ka4
- 1.Bd6?
- Keys
- 1.Bd5!
- threat
- 2.Sd4#
- 2.dxc4#
- 1...Rxd5
- 2.dxc4#
- 1...Bxd5
- 2.Sd4#
- 1...cxd3
- 2.Sd4#
- 1...Bg1
- 2.Sc7#
- 2.dxc4#
- 1...Be5
- 2.dxc4#
- 1...Sf3
- 2.dxc4#
- 1...Se6
- 2.dxc4#
- 1...c3
- 2.Sd4#
- 1...g3
- 2.Sc7#
- threat
- 1.Bd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 12
- Sets
- R(g);N_GUARD::S(D),XR(g)
- R(g);S_CUTB(h)::P(E),XP(b)
- R(g);S_CUTB(a)::S(H)
- R(g);N_GUARD::S(D)
- R(g);N_GUARD,XB(K)::S(D)
- B(a);N_GUARD::S(H)
- B(a);S_CUTR(g)::S(D)
- B(a);N_GUARD::S(H),XB(a)
- B(h);S_CUTR(g)::S(D)
- B(h);N_GUARD::P(E),XP(b)
- S(f);S_CUTB(h)::P(E),XP(b)
- P(c);S_CUTB(a)::S(H)
- Tries
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- R(g);XB(K)::S(H)
- B(a);XB(K)::S(D)
- B(h);::S(D)
- S(f);::S(D)
- R(d);::S(D)
- R(g);::S(D)
- B(a);::S(H)
- S(f);S_CUTB(h)::P(E),XP(b)
- P(c);::S(H)
- Refutation
- S(f);
- Try
- R(G);
- Threat
- DUALS(2)
- Vars
- R(g);XR(G)::P(E),XP(b)
- B(h);XR(G)::S(D)
- P(b);XP(E)::S(D)
- R(g);::S(D)
- B(a);::S(D)
- B(h);::S(D)
- B(a);::P(E),XP(b)
- S(f);::P(E),XP(b)
- P(b);::S(D)
- P(c);S_CUTB(a)::S(H)
- Refutation
- S(f);
- Try
- R(J);
- Threat
- DUALS(2)
- Vars
- R(g);XR(J)::S(H)
- B(a);XR(J)::S(D)
- R(d);::S(D)
- R(g);::S(D)
- B(a);::S(H)
- B(h);::S(D)
- S(f);::S(H)
- S(f);S_CUTB(h)::P(E),XP(b)
- P(c);::S(H)
- Refutation
- B(a);
- Try
- Q(C);CHECK
- Vars
- K(e);S_FLIGHT::QAR1(C)
- K(e);OGATE,S_FLIGHT,XS(H)::QAR1(C)
- Refutation
- K(e);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(e);S_FLIGHT::QAR1(C)
- K(e);OGATE,S_FLIGHT,XS(H)::QAR1(C)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- B(B);
- Threat
- DUALS(2)
- Vars
- R(g);XB(B)::P(E),XP(b)
- B(h);XB(B)::S(D)
- P(b);XP(E)::S(D)
- B(a);::P(E),XP(b)
- S(f);::P(E),XP(b)
- P(b);::S(D)
- P(c);S_CUTB(a)::S(H)
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