MESON Chess Problem Database
Problem Display
PID: 231284 (8/8/4R3/1N1kb3/1PrN2p1/1Q4P1/4PP2/4K3 w - - 0 1)
van Dijk, Johannes
De Maasbode, 1927
#2
9 + 4
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxg3
- 2.e4#
- 1...Bxd4
- 2.Sc7#
- 1...Bf4
- 2.e4#
- 1...Bd6
- 2.e4#
- 1...Bf6
- 2.e4#
- 1...Bc7
- 2.e4#
- 1...Bg7
- 2.e4#
- 1...Bb8
- 2.e4#
- 1...Bh8
- 2.e4#
- 1...Bxg3
- Tries
- 1.Kd1?
- 1...Bxg3
- 2.e4#
- 1...Bxd4
- 2.Sc7#
- 1...Bf4
- 2.e4#
- 1...Bd6
- 2.e4#
- 1...Bf6
- 2.e4#
- 1...Bc7
- 2.e4#
- 1...Bg7
- 2.e4#
- 1...Bb8
- 2.e4#
- 1...Bh8
- 2.e4#
- 1...Ke4!
- 1...Bxg3
- 1.Kf1?
- 1...Bxg3
- 2.e4#
- 1...Bxd4
- 2.Sc7#
- 1...Bf4
- 2.e4#
- 1...Bd6
- 2.e4#
- 1...Bf6
- 2.e4#
- 1...Bc7
- 2.e4#
- 1...Bg7
- 2.e4#
- 1...Bb8
- 2.e4#
- 1...Bh8
- 2.e4#
- 1...Ke4!
- 1...Bxg3
- 1.Sa3?
- 1...Kxd4
- 2.Qxc4#
- 2.Qd3#
- 1...Bxg3
- 2.Qxc4#
- 1...Bxd4
- 2.Qxc4#
- 1...Bf4
- 2.Qxc4#
- 1...Bd6
- 2.Qxc4#
- 1...Bf6
- 2.Qxc4#
- 1...Bc7
- 2.Qxc4#
- 1...Bg7
- 2.Qxc4#
- 1...Bb8
- 2.Qxc4#
- 1...Bh8
- 2.Qxc4#
- 1...Ke4!
- 1...Kxd4
- 1.Sd6?
- threat
- 2.Qxc4#
- 1...Kxd4
- 2.Qxc4#
- 2.Qd3#
- 1...Bxd6!
- threat
- 1.Sc7+?
- 1...Kxd4
- 2.Qd3#
- 2.Qe3#
- 1...Ke4
- 2.Qd3#
- 2.Qe3#
- 1...Bxc7!
- 1...Kxd4
- 1.Rd6+?
- 1...Ke4
- 2.Qd3#
- 2.Qe3#
- 1...Bxd6!
- 1...Ke4
- 1.Qa2?
- 1...Bxg3
- 2.e4#
- 1...Bxd4
- 2.Sc7#
- 1...Bf4
- 2.e4#
- 1...Bd6
- 2.e4#
- 1...Bf6
- 2.e4#
- 1...Bc7
- 2.e4#
- 1...Bg7
- 2.e4#
- 1...Bb8
- 2.e4#
- 1...Bh8
- 2.e4#
- 1...Ke4!
- 1...Bxg3
- 1.Qxc4+?
- 1...Ke4
- 2.Sc3#
- 2.Sd6#
- 2.Qc6#
- 1...Kxc4!
- 1...Ke4
- 1.e3?
- threat
- 2.Sc3#
- 1...Bxd4
- 2.Sc7#
- 1...Ke4!
- threat
- 1.f3?
- threat
- 2.e4#
- 1...Bxd4
- 2.Sc7#
- 1...gxf3
- 2.Qxf3#
- 1...Bxg3+!
- threat
- 1.Kd1?
- Keys
- 1.f4!
- threat
- 2.Rxe5#
- 1...Ke4
- 2.Rxe5#
- 1...Bxd4
- 2.Sc7#
- 1...Bxf4
- 2.e4#
- 1...gxf4 ep
- 2.Qxf3#
- 1...Bd6
- 2.e4#
- 1...Bf6
- 2.e4#
- 1...Bc7
- 2.e4#
- 1...Bg7
- 2.e4#
- 1...Bb8
- 2.e4#
- 1...Bh8
- 2.e4#
- threat
- 1.f4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- B(d);P_PINP(C),XP(E)::P(B)
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- B(d);::P(B)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(d);XP(E)::P(B)
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- B(d);::P(B)
- Refutation
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT
- Try
- K(A);P-FLIGHT
- Vars
- B(d);XP(E)::P(B)
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- B(d);::P(B)
- Refutation
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT
- Try
- S(H);
- Vars
- B(d);P_PINP(C),XP(E)::QAB1(D),XR(a)
- B(d);XS(G)::QAB1(D),XR(a)
- B(d);::QAB1(D),XR(a)
- Refutation
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT
- Try
- S(H);
- Threat
- QAB1(D),XR(a)
- Refutation
- B(d);XS(H)
- Try
- S(H);CHECK
- Refutation
- B(d);XS(H)
- Try
- R(I);CHECK
- Refutation
- B(d);XR(I)
- Try
- Q(D);
- Vars
- B(d);P_PINP(C),XP(E)::P(B)
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- B(d);::P(B)
- Refutation
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT
- Try
- Q(D);CHECK,XR(a)
- Refutation
- K(c);S_FLIGHT,XQ(D)
- Try
- P(B);
- Threat
- S(H)
- Vars
- B(d);N_GUARD,XS(G)::S(H)
- Refutation
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT
- Try
- P(C);
- Threat
- P(B)
- Vars
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- P(b);OGATE,XP(C)::QAB(D),XP(b)
- Refutation
- B(d);CHECK,XP(E)
- Try
- Actual
- P(C);
- Threat
- R1(I),XB(d)
- Vars
- K(c);N_SPINR(a),P_SPINB(d),S_FLIGHT::R1(I),XB(d)
- B(d);N_GUARD,SBLOCK,XS(G)::S(H)
- B(d);XP(C)::P(B)
- P(b);EP,N_GUARD,XP(C)::QAB(D),XP(b)
- B(d);::P(B)
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