MESON Chess Problem Database
Problem Display
PID: 52620 (3n4/8/2p1nR2/6BR/2QPk1Kp/6pr/r6b/q1NN4 w - - 0 1)
Ahues, Herbert Siegfried Oskar
Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1987-1988
#2
8 + 10
| 5110 | Bekroonde Problemen | 2002 |
| 15148 | Sadier Collection | 2014 |
SOLUTION
- SOUND
- Sets
- 1...Qc3
- 2.Sxc3#
- 1...Qb1
- 2.Sc3#
- 1...Rb2
- 2.Sc3#
- 1...Sf4
- 2.Rxf4#
- 1...Sc5
- 2.Rf4#
- 1...Sxg5
- 2.Rf4#
- 1...Sc7
- 2.Rf4#
- 1...Sg7
- 2.Rf4#
- 1...Sf8
- 2.Rf4#
- 1...Sb7
- 2.Rxe6#
- 1...Qc3
- Tries
- 1.Be3?
- threat
- 2.Re5#
- 2.Qd3#
- 1...Qxc1
- 2.Re5#
- 1...Sxd4
- 2.Rf4#
- 2.Qd3#
- 1...Qc3
- 2.Re5#
- 1...Qb1
- 2.Re5#
- 1...Rd2
- 2.Re5#
- 1...Ra3
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 2.Qc2#
- 1...Sf4
- 2.Re5#
- 2.Rxf4#
- 1...Sc5
- 2.Re5#
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sf7
- 2.Qd3#
- 2.Qxc6#
- 1...g2
- 2.Qd3#
- 1...Qxd4!
- threat
- 1.Bf4?
- threat
- 2.Re5#
- 2.Qd3#
- 1...Qxd4
- 2.Sc3#
- 2.Re5#
- 1...Qxc1
- 2.Re5#
- 1...Sxf4
- 2.Re5#
- 2.Rxf4#
- 1...Qc3
- 2.Sxc3#
- 2.Re5#
- 1...Qb1
- 2.Sc3#
- 2.Re5#
- 1...Rd2
- 2.Re5#
- 1...Ra3
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 1...Sc5
- 2.Re5#
- 1...Sf7
- 2.Qd3#
- 1...g2
- 2.Re5#
- 1...Sg5!
- threat
- 1.Bh6?
- threat
- 2.Re5#
- 2.Qd3#
- 1...Qxd4
- 2.Sc3#
- 1...Qxc1
- 2.Re5#
- 1...Sxd4
- 2.Rf4#
- 2.Qd3#
- 1...Qc3
- 2.Sxc3#
- 2.Re5#
- 1...Qb1
- 2.Sc3#
- 2.Re5#
- 1...Rd2
- 2.Re5#
- 1...Ra3
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 1...Sf4
- 2.Re5#
- 2.Rxf4#
- 1...Sc5
- 2.Re5#
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sf7
- 2.Qd3#
- 1...g2!
- threat
- 1.Rf5?
- threat
- 2.Re5#
- 2.Qd3#
- 1...Qxd4
- 2.Sc3#
- 1...Qxc1
- 2.Re5#
- 1...Sxd4
- 2.Qd3#
- 1...Qc3
- 2.Sxc3#
- 2.Re5#
- 1...Qb1
- 2.Sc3#
- 2.Re5#
- 1...Rd2
- 2.Re5#
- 1...Ra3
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 1...Sf4
- 2.Rxf4#
- 2.Re5#
- 1...Sc5
- 2.Rf4#
- 2.Re5#
- 1...Sf7
- 2.Qd3#
- 1...g2!
- threat
- 1.Qxe6+?
- 1...Kxd4
- 2.Be3#
- 1...Sxe6!
- 1...Kxd4
- 1.Qxc6+?
- 1...Kxd4
- 2.Be3#
- 1...Sxc6!
- 1...Kxd4
- 1.Be3?
- Keys
- 1.Bd2!
- threat
- 2.Re5#
- 2.Qd3#
- 1...Qxd4
- 2.Sc3#
- 1...Qxc1
- 2.Re5#
- 1...Rxd2
- 2.Re5#
- 1...Sxd4
- 2.Rf4#
- 2.Qd3#
- 1...Qc3
- 2.Sxc3#
- 2.Re5#
- 1...Qb1
- 2.Sc3#
- 2.Re5#
- 1...Ra3
- 2.Re5#
- 1...Ra5
- 2.Qd3#
- 1...Sf4
- 2.Re5#
- 2.Rxf4#
- 1...Sc5
- 2.Re5#
- 2.Rf4#
- 1...Sg5
- 2.Rf4#
- 1...Sf7
- 2.Qd3#
- 1...g2
- 2.Sf2#
- threat
- 1.Bd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- Q(a);N_GUARD::S(B),XQ(a)
- Q(a);N_GUARD::S(B)
- R(b);S_CUTQ(a)::S(B)
- S(i);N_GUARD::R1(H),XS(i)
- S(i);N_GUARD::R1(H)
- S(i);N_GUARD,XB(F)::R1(H)
- S(j);N_GUARD::R(H),XS(i)
- Tries
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(A)::R1(G)
- Q(a);::R1(G)
- R(b);::R1(G)
- S(i);N_GUARD::R1(H)
- P(d);::QAB1(C)
- Refutation
- Q(a);P_SPINQ(a),XP(D)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(A)::R1(G)
- R(b);::R1(G)
- R(b);::QAB1(C)
- S(i);::R1(G)
- S(j);::QAB1(C)
- P(d);::R1(G)
- Refutation
- S(i);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_SPINQ(a),XP(D)::S(B)
- Q(a);XS(A)::R1(G)
- R(b);::R1(G)
- R(b);::QAB1(C)
- S(i);N_GUARD::R1(H)
- S(j);::QAB1(C)
- Refutation
- P(d);
- Try
- R(H);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_SPINQ(a),XP(D)::S(B)
- Q(a);XS(A)::R1(H)
- S(i);P_SPINS(i),XP(D)::QAB1(C)
- R(b);::R1(H)
- R(b);::QAB1(C)
- S(j);::QAB1(C)
- Refutation
- P(d);
- Try
- Q(C);CHECK,XS(i)
- Vars
- K(f);P-FLIGHT,XP(D)::B(F)
- Refutation
- S(j);XQ(C)
- Try
- Q(C);CHECK,XP(h)
- Vars
- K(f);P-FLIGHT,XP(D)::B(F)
- Refutation
- S(j);XQ(C)
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD,P_SPINQ(a),XP(D)::S(B)
- Q(a);XS(A)::R1(G)
- R(b);XB(F)::R1(G)
- R(b);::R1(G)
- R(b);::QAB1(C)
- S(i);N_GUARD::R1(H)
- S(j);::QAB1(C)
- P(d);N_GUARD::S(B)
Developed and maintained by Brian Stephenson.
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