MESON Chess Problem Database
Problem Display
PID: 17601 (b2n2B1/8/6NB/1Q2N2p/1p1pk3/5R1K/r3p3/4n3 w - - 0 1)
Goldschmeding, Cornelis
Arbejder-Skak, 1948
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qxe2#
- 1...Ra4
- 2.Qxe2#
- 1...Ra5
- 2.Qxe2#
- 1...Ra6
- 2.Qxe2#
- 1...Ra7
- 2.Qxe2#
- 1...Bd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sxf3
- 2.Qd3#
- 1...Sc6
- 2.Bd5#
- 2.Qd5#
- 1...Sb7
- 2.Bd5#
- 2.Qc6#
- 2.Qd5#
- 1...d3
- 2.Qc4#
- 2.Qxb4#
- 1...Ra1
- Tries
- 1.Sd3?
- threat
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Sxf3
- 2.Sf2#
- 1...Bd5
- 2.Bxd5#
- 2.Qxd5#
- 1...Ra5!
- threat
- 1.Sg4?
- threat
- 2.Rf4#
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Sxf3
- 2.Sf2#
- 2.Sf6#
- 1...d3
- 2.Rf4#
- 1...Ra3
- 2.Qf5#
- 1...Ra5
- 2.Rf4#
- 2.Qxe2#
- 1...Bd5
- 2.Bxd5#
- 2.Rf4#
- 2.Qxd5#
- 1...Sg2
- 2.Qd3#
- 2.Qf5#
- 1...Sd3
- 2.Qxd3#
- 2.Qf5#
- 1...Se6
- 2.Qf5#
- 1...hxg4+!
- threat
- 1.Sc6?
- threat
- 2.Bd5#
- 2.Qd5#
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Bxc6
- 2.Qf5#
- 1...Ra5
- 2.Bd5#
- 2.Qxe2#
- 1...Se6
- 2.Qf5#
- 1...Sf7
- 2.Qf5#
- 1...Sxf3!
- threat
- 1.Sd7?
- threat
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Sxf3
- 2.Sf6#
- 1...Ra5
- 2.Qxe2#
- 1...Bd5
- 2.Bxd5#
- 2.Qxd5#
- 1...d3!
- threat
- 1.Sf7?
- threat
- 2.Sg5#
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Sxf3
- 2.Sd6#
- 1...Sxf7
- 2.Qf5#
- 1...Ra5
- 2.Sg5#
- 1...Bd5
- 2.Sg5#
- 1...Se6
- 2.Qf5#
- 1...d3!
- threat
- 1.Sh4?
- threat
- 2.Bh7#
- 1...Bd5
- 2.Qxd5#
- 1...Ra6
- 2.Qxe2#
- 1...Ra7
- 2.Qxe2#
- 1...d3!
- threat
- 1.Se7?
- threat
- 2.Bh7#
- 1...Bd5
- 2.Qxd5#
- 1...Ra6
- 2.Qxe2#
- 1...d3!
- threat
- 1.Sf8?
- threat
- 2.Bh7#
- 1...Bd5
- 2.Qxd5#
- 1...Ra6
- 2.Qxe2#
- 1...Ra7
- 2.Qxe2#
- 1...d3!
- threat
- 1.Sh8?
- threat
- 2.Bh7#
- 1...Bd5
- 2.Qxd5#
- 1...Ra6
- 2.Qxe2#
- 1...Ra7
- 2.Qxe2#
- 1...d3!
- threat
- 1.Bxa2?
- threat
- 2.Qxe2#
- 1...Sxf3
- 2.Qd3#
- 1...d3
- 2.Qc4#
- 2.Qxb4#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...b3!
- threat
- 1.Be6?
- threat
- 2.Bf5#
- 1...Sxf3
- 2.Qd3#
- 1...d3
- 2.Qc4#
- 2.Qxb4#
- 1...Sxe6!
- threat
- 1.Sd3?
- Keys
- 1.Sc4!
- threat
- 2.Qf5#
- 1...Kxf3
- 2.Qf5#
- 1...Sxf3
- 2.Sd6#
- 1...d3
- 2.Rf4#
- 1...Ra5
- 2.Sd2#
- 1...Bd5
- 2.Bxd5#
- 2.Qxd5#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD::QAR2(C),XP(c)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- S(a);N_GUARD,XR(A)::QAB1(C)
- Tries
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- S(a);SBLOCK,XR(A)::S(D)
- Refutation
- R(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- P(e);::R1(A)
- R(b);P_PINR(A)::QAB1(C)
- S(i);::QAB1(C)
- Refutation
- P(g);CHECK,XS(D)
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- B(h);XS(D)::QAB1(C)
- S(i);::QAB1(C)
- Refutation
- S(a);XR(A)
- Try
- S(D);
- Threat
- QAB1(C)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- S(a);SBLOCK,XR(A)::S(D)
- R(b);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- S(a);SBLOCK,XR(A)::S(D)
- S(i);XS(D)::QAB1(C)
- R(b);::S(D)
- B(h);::S(D)
- S(i);::QAB1(C)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- B(G)
- Vars
- B(h);N_GUARD::QAB1(C),XB(h)
- R(b);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- B(G)
- Vars
- B(h);N_GUARD::QAB1(C),XB(h)
- R(b);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- B(G)
- Vars
- B(h);N_GUARD::QAB1(C),XB(h)
- R(b);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- S(E);
- Threat
- B(G)
- Vars
- B(h);N_GUARD::QAB1(C),XB(h)
- R(b);N_GUARD::QAR2(C),XP(c)
- Refutation
- P(e);
- Try
- B(G);XR(b)
- Threat
- QAR2(C),XP(c)
- Vars
- S(a);N_GUARD,XR(A)::QAB1(C)
- S(a);N_GUARD::QAB1(C)
- S(a);N_GUARD::QAB1(C),XS(a)
- Refutation
- P(d);
- Try
- B(G);
- Threat
- B(G)
- Vars
- S(a);N_GUARD,XR(A)::QAB1(C)
- Refutation
- S(i);XB(G)
- Try
- Actual
- S(D);
- Threat
- QAB1(C)
- Vars
- K(f);S_FLIGHT,XR(A)::QAR2(C)
- S(a);SBLOCK,XR(A)::S(D)
- P(e);SBLOCK::R1(A)
- R(b);N_GUARD::S(D)
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