MESON Chess Problem Database
Problem Display
PID: 49905 (8/2pp4/7R/r2k2K1/q2PNP2/2RQ1bp1/2N2brn/8 w - - 0 1)
Degener, Udo
3rd HM., Troll, 1999
#2
8 + 10
| 14503 | Problemschach-Jahrbuch (1999) | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Sb4#
- 1...Qa1
- 2.Sb4#
- 1...Qa2
- 2.Sb4#
- 1...Qb4
- 2.Sxb4#
- 1...Qxd4
- 2.Sb4#
- 1...Rc5
- 2.Rxc5#
- 1...Ra6
- 2.Rc5#
- 1...Ra7
- 2.Rc5#
- 1...Ra8
- 2.Rc5#
- 1...Be1
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bxd4
- 2.Se3#
- 1...c5
- 2.Rd6#
- 1...c6
- 2.Rd6#
- 1...Qc6
- Tries
- 1.Sxf2?
- threat
- 2.Se3#
- 2.Qf5#
- 1...Qxc2
- 2.Qc4#
- 1...Qxd4
- 2.Se3#
- 2.Sb4#
- 2.Qxd4#
- 1...Be4
- 2.Se3#
- 2.Qxe4#
- 1...Bg4
- 2.Se3#
- 2.Qe4#
- 1...Sf1
- 2.Qf5#
- 2.Qxf3#
- 1...Sg4
- 2.Qxf3#
- 1...gxf2+!
- threat
- 1.Sxg3?
- threat
- 2.Qf5#
- 1...Qxc2
- 2.Qc4#
- 1...Qxd4
- 2.Sb4#
- 1...Bxd4
- 2.Se3#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Sg4
- 2.Qxf3#
- 1...Rxg3+!
- threat
- 1.Sc5?
- threat
- 2.Qf5#
- 1...Qxc2
- 2.Qc4#
- 1...Qxd4
- 2.Sb4#
- 1...Bxd4
- 2.Se3#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Sg4
- 2.Qxf3#
- 1...d6!
- threat
- 1.Sd6?
- threat
- 2.Qf5#
- 1...Qxc2
- 2.Qc4#
- 1...Qxd4
- 2.Sb4#
- 1...Bxd4
- 2.Se3#
- 1...Qc4
- 2.Qxc4#
- 1...Rc5
- 2.Rxc5#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Sg4
- 2.Qxf3#
- 1...c5!
- threat
- 1.Sxf2?
- Keys
- 1.Sd2!
- threat
- 2.Qf5#
- 1...Qxc2
- 2.Qc4#
- 1...Qxd4
- 2.Sb4#
- 1...Bxd4
- 2.Se3#
- 1...Be4
- 2.Qxe4#
- 1...Bg4
- 2.Qe4#
- 1...Sg4
- 2.Qxf3#
- threat
- 1.Sd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 12
- Sets
- Q(f);N_GUARD::S(A)
- Q(f);N_GUARD::S(A),XQ(f)
- Q(f);N_GUARD,P_SPINQ(f),XP(D)::S(A)
- R(g);N_GUARD::R1(B),XR(g)
- R(g);N_GUARD::R1(B)
- B(a);N_GUARD::S(A)
- B(a);N_GUARD,P_PINP(F)::S(A),XB(a)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(A)
- P(i);N_GUARD::R1(H)
- Tries
- Try
- S(E);XB(a)
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,XS(A)::QAB1(C)
- S(c);N_GUARD::QAB(C),XB(d)
- Refutation
- P(e);CHECK,XS(E)
- Try
- S(E);P_SPINS(E),XP(e)
- Threat
- QAR2(C)
- Vars
- Q(f);N_GUARD,XS(A)::QAB1(C)
- Q(f);N_GUARD,P_SPINQ(f),XP(D)::S(A)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(A)
- B(d);N_GUARD::QAB1(C),XB(d)
- B(d);N_GUARD,N_PINS(E)::QAB1(C)
- S(c);N_GUARD,N_PINS(E)::QAB(C),XB(d)
- Refutation
- R(b);CHECK,XS(E)
- Try
- S(E);
- Threat
- QAR2(C)
- Vars
- Q(f);N_GUARD,XS(A)::QAB1(C)
- Q(f);N_GUARD,P_SPINQ(f),XP(D)::S(A)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(A)
- B(d);N_GUARD::QAB1(C),XB(d)
- B(d);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB(C),XB(d)
- Refutation
- P(j);
- Try
- S(E);
- Threat
- QAR2(C)
- Vars
- Q(f);N_GUARD,XS(A)::QAB1(C)
- Q(f);N_GUARD,P_SPINQ(f),XP(D)::S(A)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(A)
- Q(f);N_GUARD::QAB1(C),XQ(f)
- R(g);N_GUARD::R1(B),XR(g)
- B(d);N_GUARD::QAB1(C),XB(d)
- B(d);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB(C),XB(d)
- Refutation
- P(i);
- Try
- Actual
- S(E);
- Threat
- QAR2(C)
- Vars
- Q(f);N_GUARD,XS(A)::QAB1(C)
- Q(f);N_GUARD,P_SPINQ(f),XP(D)::S(A)
- B(a);N_GUARD,P_SPINB(a),XP(D)::S(A)
- B(d);N_GUARD::QAB1(C),XB(d)
- B(d);N_GUARD::QAB1(C)
- S(c);N_GUARD::QAB(C),XB(d)
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