MESON Chess Problem Database
Problem Display
PID: 91804 (2Q5/5rP1/p2N2PK/q1pn2N1/3kB2R/1P3p2/1P1b1P1B/3R4 w - - 0 1)
Dujardin, Paul
1st Prize, Belgian Federation, 1946-1947
#2
13 + 8
| 6490 | yacpdb | 2009 |
| 14868 | Pirnie Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Qb6
- 2.Rxd2#
- 1...Qc7
- 2.Rxd2#
- 1...Qd8
- 2.Rxd2#
- 1...Qa1
- 2.Rxd2#
- 1...Qa2
- 2.Rxd2#
- 1...Qa3
- 2.Rxd2#
- 1...Qa4
- 2.Rxd2#
- 1...Rf5
- 2.Sxf5#
- 1...Ra7
- 2.Sf5#
- 1...Rb7
- 2.Sf5#
- 1...Rc7
- 2.Sf5#
- 1...Rd7
- 2.Sf5#
- 1...Re7
- 2.Sf5#
- 1...Rxg7
- 2.Sf5#
- 1...Sc3
- 2.Rxd2#
- 1...Se3
- 2.Se6#
- 1...Sf4
- 2.Sxf3#
- 1...Sf6
- 2.Sf5#
- 1...c4
- 2.Qxc4#
- 1...Qb6
- Tries
- 1.Sxf7?
- threat
- 2.Be5#
- 1...Qc7
- 2.Rxd2#
- 1...Sf4!
- threat
- 1.Bf4?
- threat
- 2.Sxf3#
- 2.Se6#
- 1...Sxf4
- 2.Sxf3#
- 1...Qc3
- 2.Se6#
- 1...Rf6
- 2.Sxf3#
- 1...Re7
- 2.Sxf3#
- 2.Sf5#
- 1...Sc7
- 2.Sxf3#
- 1...Rxf4!
- threat
- 1.Bb1+?
- 1...Rf4
- 2.Sxf3#
- 1...Sf4!
- 1...Rf4
- 1.Bc2+?
- 1...Rf4
- 2.Sxf3#
- 1...Sf4!
- 1...Rf4
- 1.Qf5?
- threat
- 2.Be5#
- 2.Bxd5#
- 2.Qxd5#
- 2.Qe5#
- 1...Rxf5
- 2.Sxf5#
- 1...Sf4
- 2.Sxf3#
- 1...Re7
- 2.Qxd5#
- 1...Sc3
- 2.Be5#
- 2.Rxd2#
- 2.Qe5#
- 1...Se3
- 2.Sxf3#
- 2.Se6#
- 2.Be5#
- 2.Qe5#
- 1...Sb4
- 2.Be5#
- 2.Bb1#
- 2.Bc2#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qe5#
- 1...Sb6
- 2.Be5#
- 2.Bb1#
- 2.Bc2#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qe5#
- 1...Sf6
- 2.Be5#
- 2.Qe5#
- 1...Sc7
- 2.Be5#
- 2.Bb1#
- 2.Bc2#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qe5#
- 1...Se7
- 2.Be5#
- 2.Bb1#
- 2.Bc2#
- 2.Bxf3#
- 2.Bd5#
- 2.Bc6#
- 2.Bb7#
- 2.Ba8#
- 2.Qe5#
- 1...c4!
- threat
- 1.Qe6?
- threat
- 2.Be5#
- 2.Qxd5#
- 2.Qe5#
- 1...Sf4
- 2.Sxf3#
- 1...Rf4
- 2.Qxd5#
- 1...Rf5
- 2.Sxf5#
- 1...Re7
- 2.Sf5#
- 2.Be5#
- 2.Qxd5#
- 1...Sc3
- 2.Be5#
- 2.Rxd2#
- 2.Qc4#
- 2.Qe5#
- 1...Se3
- 2.Be5#
- 2.Qe5#
- 1...Sb4
- 2.Be5#
- 2.Bf5#
- 2.Qc4#
- 2.Qe5#
- 1...Sb6
- 2.Be5#
- 2.Bf5#
- 2.Qe5#
- 1...Sf6
- 2.Sf5#
- 2.Be5#
- 2.Qc4#
- 2.Qe5#
- 1...Sc7
- 2.Be5#
- 2.Bf5#
- 2.Qc4#
- 2.Qe5#
- 1...Se7
- 2.Be5#
- 2.Bf5#
- 2.Qc4#
- 2.Qe5#
- 1...c4!
- threat
- 1.Qb7?
- threat
- 2.Qxd5#
- 1...Rxb7
- 2.Sf5#
- 1...Sf4
- 2.Sxf3#
- 1...Rf5
- 2.Sxf5#
- 1...Sc3
- 2.Rxd2#
- 1...Se3
- 2.Se6#
- 1...Sb4
- 2.Bf5#
- 1...Sb6
- 2.Bf5#
- 1...Sf6
- 2.Sf5#
- 1...Sc7
- 2.Bf5#
- 1...Se7
- 2.Bf5#
- 1...c4!
- threat
- 1.Qxc5+?
- 1...Qxc5
- 2.Rxd2#
- 1...Kxc5!
- 1...Qxc5
- 1.Qa8?
- threat
- 2.Qxd5#
- 1...Sf4
- 2.Sxf3#
- 1...Rf5
- 2.Sxf5#
- 1...Rb7
- 2.Sf5#
- 1...Sc3
- 2.Rxd2#
- 1...Se3
- 2.Se6#
- 1...Sb4
- 2.Bf5#
- 1...Sb6
- 2.Bf5#
- 1...Sf6
- 2.Sf5#
- 1...Sc7
- 2.Bf5#
- 1...Se7
- 2.Bf5#
- 1...c4!
- threat
- 1.gxf7?
- threat
- 2.Sf5#
- 1...Sf4
- 2.Sxf3#
- 1...Qb6
- 2.Rxd2#
- 1...Se3
- 2.Sxf3#
- 2.Se6#
- 1...Se7!
- threat
- 1.Sxf7?
- Keys
- 1.Qc6!
- threat
- 2.Qxd5#
- 1...Sf4
- 2.Sxf3#
- 1...Rf5
- 2.Sxf5#
- 1...Sc3
- 2.Rxd2#
- 1...Se3
- 2.Se6#
- 1...Sb4
- 2.Bf5#
- 1...Sb6
- 2.Bf5#
- 1...Sf6
- 2.Sf5#
- 1...Sc7
- 2.Bf5#
- 1...Se7
- 2.Bf5#
- 1...c4
- 2.Qxc4#
- threat
- 1.Qc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 13
- Sets
- Q(d);N_GUARD::R(A),XB(a)
- R(h);N_GUARD::S(I),XR(h)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD,XP(L)::S(I)
- S(f);S_CUTQ(d)::R(A),XB(a)
- S(f);N_PINS(H)::S(H)
- S(f);N_PINS(H)::S(H),XP(b)
- S(f);S_CUTR(h)::S(I)
- P(e);OGATE::QAR1(M),XP(e)
- Tries
- Try
- S(I);XR(h)
- Threat
- B(D)
- Vars
- Q(d);N_GUARD::R(A),XB(a)
- Refutation
- S(f);N_PINS(H)
- Try
- B(D);N_SPINS(H)
- Threat
- DUALS(2)
- Vars
- S(f);XB(D)::S(H),XP(b)
- Q(d);::S(H)
- R(h);P_PINP(J)::S(H),XP(b)
- S(f);::S(H),XP(b)
- Refutation
- R(h);XB(D)
- Try
- B(F);CHECK
- Vars
- R(h);N_PINS(H),P_SPINR(h)::S(H),XP(b)
- Refutation
- S(f);N_PINS(H),P_SPINS(f)
- Try
- B(F);CHECK
- Vars
- R(h);N_PINS(H),P_SPINR(h)::S(H),XP(b)
- Refutation
- S(f);N_PINS(H),P_SPINS(f)
- Try
- Q(M);
- Threat
- DUALS(4)
- Vars
- R(h);XQ(M)::S(I),XR(h)
- S(f);N_PINS(H)::S(H),XP(b)
- R(h);::QAR1(M),XS(f)
- Refutation
- P(e);
- Try
- Q(M);
- Threat
- DUALS(3)
- Vars
- S(f);N_PINS(H)::S(H),XP(b)
- R(h);N_PINS(H)::QAR1(M),XS(f)
- R(h);N_GUARD::S(I),XR(h)
- Refutation
- P(e);
- Try
- Q(M);
- Threat
- QAR1(M),XS(f)
- Vars
- R(h);N_GUARD,XQ(M)::S(I)
- S(f);N_PINS(H)::S(H),XP(b)
- R(h);N_GUARD::S(I),XR(h)
- S(f);S_CUTQ(d)::R(A),XB(a)
- S(f);N_PINS(H)::S(H)
- S(f);N_GUARD::R(G)+B(F)
- S(f);S_CUTR(h)::S(I)
- Refutation
- P(e);
- Try
- Q(M);CHECK,XP(e)
- Vars
- Q(d);SBLOCK,XQ(M)::R(A),XB(a)
- Refutation
- K(c);N_SPINB(a),S_FLIGHT,XQ(M)
- Try
- Q(M);
- Threat
- QAR1(M),XS(f)
- Vars
- S(f);N_PINS(H)::S(H),XP(b)
- R(h);N_GUARD::S(I),XR(h)
- R(h);N_GUARD::S(I)
- S(f);S_CUTQ(d)::R(A),XB(a)
- S(f);N_PINS(H)::S(H)
- S(f);N_GUARD::R(G)+B(F)
- S(f);S_CUTR(h)::S(I)
- Refutation
- P(e);
- Try
- P(J);XR(h)
- Threat
- S(I)
- Vars
- S(f);N_PINS(H)::S(H),XP(b)
- Q(d);N_GUARD::R(A),XB(a)
- Refutation
- S(f);
- Try
- Actual
- Q(M);
- Threat
- QAR1(M),XS(f)
- Vars
- S(f);N_PINS(H)::S(H),XP(b)
- R(h);N_GUARD::S(I),XR(h)
- S(f);S_CUTQ(d)::R(A),XB(a)
- S(f);N_PINS(H)::S(H)
- S(f);N_GUARD::R(G)+B(F)
- S(f);S_CUTR(h)::S(I)
- P(e);OGATE::QAR1(M),XP(e)
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