MESON Chess Problem Database
Problem Display
PID: 75545 (2R1Kn1n/1N2Q3/p1NP4/P4R2/P1kp1p2/q4r2/1PP5/5b1B w - - 0 1)
Kovacevic, Marjan
1st Prize, diagrammes, 1991
#2
12 + 9
| 56 | The Problemist | 2007 |
| 3770 | BCSC Postal | 2013-2014 |
SOLUTION
- SOUND
- Sets
- 1...Qxb2
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qa1
- 2.Rc5#
- 1...Qa2
- 2.Rc5#
- 1...Qb3
- 2.Rc5#
- 1...Qc3
- 2.Rc5#
- 1...Qd3
- 2.Rc5#
- 1...Qe3
- 2.Rc5#
- 1...Qxa4
- 2.Rc5#
- 1...Rf2
- 2.Bd5#
- 1...Rb3
- 2.Bd5#
- 1...Rc3
- 2.Bd5#
- 1...Rd3
- 2.Bd5#
- 1...Re3
- 2.Bd5#
- 1...Rg3
- 2.Bd5#
- 1...Rh3
- 2.Bd5#
- 1...Se6
- 2.Qxe6#
- 1...Sfg6
- 2.Qe6#
- 1...Sd7
- 2.Qe6#
- 1...Sh7
- 2.Qe6#
- 1...d3
- 2.Qe4#
- 1...Qxb2
- Tries
- 1.Kxf8?
- threat
- 2.Qe6#
- 1...Qxb2
- 2.Rc5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qc5
- 2.Rxc5#
- 1...Qe3
- 2.Rc5#
- 1...Re3
- 2.Bd5#
- 1...Sg6+!
- threat
- 1.Se5+?
- 1...Kd5
- 2.Sd3#
- 2.Sxf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kb4!
- 1...Kd5
- 1.Bxf3?
- threat
- 2.Bd5#
- 1...Qxb2
- 2.Rc5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qxf3
- 2.Rc5#
- 1...Qxa4
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Bg2!
- threat
- 1.Rb5?
- threat
- 2.Sb4#
- 2.Se5#
- 1...Qxd6
- 2.Se5#
- 2.Sxd6#
- 1...Qxa4
- 2.Sa7#
- 2.Rc5#
- 1...Qc5
- 2.Rxc5#
- 1...Qb4
- 2.Sxb4#
- 2.Se5#
- 1...Bh3
- 2.Se5#
- 1...Se6
- 2.Se5#
- 2.Qxe6#
- 1...Sd7
- 2.Se5#
- 2.Qe6#
- 1...d3
- 2.Qe4#
- 1...axb5!
- threat
- 1.Qe2+?
- 1...Qd3
- 2.Rc5#
- 1...Rd3
- 2.Bd5#
- 1...d3
- 2.Qe4#
- 1...Bxe2!
- 1...Qd3
- 1.Qe4?
- threat
- 2.Qd5#
- 2.Qxd4#
- 1...Qxb2
- 2.Rc5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qc5
- 2.Rxc5#
- 1...Qc3
- 2.Rc5#
- 2.Qd5#
- 1...Qd3
- 2.Rc5#
- 2.Qd5#
- 1...Qe3
- 2.Rc5#
- 1...Rd3
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 2.Qxe6#
- 1...Re3!
- threat
- 1.Qe5?
- threat
- 2.Qxd4#
- 2.Qd5#
- 1...Qxb2
- 2.Qc5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qc5
- 2.Qxc5#
- 1...Qc3
- 2.Qc5#
- 2.Qd5#
- 1...Qd3
- 2.Qc5#
- 2.Qd5#
- 1...Rd3
- 2.Bd5#
- 2.Qd5#
- 1...Re3
- 2.Bd5#
- 1...Se6
- 2.Qd5#
- 2.Qxe6#
- 1...d3
- 2.Qd4#
- 2.Qe4#
- 2.Qd5#
- 1...Qe3!
- threat
- 1.Qf7+?
- 1...Se6
- 2.Qxe6#
- 1...Sxf7!
- 1...Se6
- 1.d7?
- threat
- 2.Sb4#
- 1...Qxa4
- 2.Sd6#
- 2.Rc5#
- 2.Qc5#
- 1...Sxd7
- 2.Qe6#
- 1...Qb4
- 2.Sxb4#
- 2.Qxb4#
- 1...Qc5
- 2.Rxc5#
- 2.Qxc5#
- 1...Qd6
- 2.Sxd6#
- 1...Se6
- 2.Qxe6#
- 1...d3
- 2.Qe4#
- 1...Qxe7+!
- threat
- 1.Kxf8?
- Keys
- 1.Qe1!
- threat
- 2.Sb4#
- 1...Qe3+
- 2.Se7#
- 1...Re3+
- 2.Se5#
- 1...Qxd6
- 2.Sxd6#
- 1...Qxa4
- 2.Rc5#
- 1...Qb4
- 2.Sxb4#
- 2.Qxb4#
- 1...Qc5
- 2.Rxc5#
- 1...Qc3
- 2.Rc5#
- 1...Rc3
- 2.Bd5#
- 1...Se6
- 2.Qxe6#
- 1...Sd7
- 2.Qe6#
- 1...d3
- 2.Qe4#
- threat
- 1.Qe1!
This is a version of 65266
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 12
- Sets
- Q(b);N_GUARD,XP(B)::R1(F)
- Q(b);N_GUARD::R1(F),XQ(b)
- Q(b);XP(H)::S(I),XQ(b)
- Q(b);N_GUARD::R1(F)
- Q(b);N_GUARD,P_PINQ(J)::R1(F)
- Q(b);N_GUARD,P_PINS(G),XP(D)::R1(F)
- R(c);OGATE::B(A)
- R(c);OGATE,P_PINQ(J)::B(A)
- S(h);N_GUARD::QAB(J),XS(h)
- S(h);N_GUARD::QAB(J)
- P(e);OGATEB::QAR2(J)
- Tries
- Try
- K(L);P-FLIGHT,XS(h)
- Threat
- QAB(J)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F)
- Q(b);P_PINQ(J),XP(H)::S(I),XQ(b)
- Q(b);N_GUARD::R1(F),XQ(b)
- Q(b);N_GUARD::R1(F)
- R(c);OGATE::B(A)
- Refutation
- S(i);CHECK
- Try
- S(G);CHECK
- Refutation
- K(d);P-FLIGHT
- Try
- B(A);XR(c)
- Threat
- B(A)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F)
- Q(b);XP(H)::S(I),XQ(b)
- Q(b);N_GUARD,XB(A)::R1(F)
- Q(b);N_GUARD,P_PINS(G),XP(D)::R1(F)
- Q(b);N_GUARD::R1(F),XQ(b)
- Refutation
- B(a);
- Try
- R(F);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD::R1(F),XQ(b)
- B(a);::R(K)+S(G),DCHECK
- P(e);OGATEB::QAR2(J)
- Refutation
- P(g);XR(F)
- Try
- Q(J);CHECK
- Vars
- Q(b);P_SPINQ(b)::R1(F)
- R(c);OGATE,P_SPINR(c)::B(A)
- P(e);OGATEB,P_SPINP(e)::QAR2(J)
- Refutation
- B(a);XQ(J)
- Try
- Q(J);P_PINP(e)
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XP(B)::R1(F)
- Q(b);XP(H)::S(I),XQ(b)
- Q(b);N_GUARD::R1(F),XQ(b)
- Q(b);N_GUARD,P_PINQ(J)::R1(F)
- R(c);::QAB1(J)
- Refutation
- R(c);P_PINQ(J)
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(b);N_GUARD,XP(B)::QAR1(J)
- Q(b);XP(H)::S(I),XQ(b)
- Q(b);N_GUARD::QAR1(J),XQ(b)
- R(c);OGATE,P_PINQ(J)::B(A)
- Refutation
- Q(b);P_PINQ(J)
- Try
- Q(J);CHECK
- Vars
- S(h);N_GUARD,P_SPINS(h)::QAB(J),XS(h)
- Refutation
- S(i);XQ(J)
- Try
- P(H);
- Threat
- R(K)+S(G)
- Vars
- S(h);N_GUARD,XP(H)::QAB(J)
- Q(b);N_GUARD::S(I),XQ(b)
- S(h);N_GUARD::QAB(J),XS(h)
- P(e);OGATEB::QAR2(J)
- Refutation
- Q(b);CHECK,XQ(J)
- Try
- Actual
- Q(J);
- Threat
- R(K)+S(G)
- Vars
- Q(b);CHECK,N_GUARD::R(K)+S(G)
- R(c);CHECK::R(K)+S(G),DCHECK
- Q(b);XP(H)::S(I),XQ(b)
- Q(b);N_GUARD,P_PINS(G),XP(D)::R1(F)
- Q(b);N_GUARD::R1(F),XQ(b)
- Q(b);N_GUARD::R1(F)
- R(c);OGATE::B(A)
- S(h);N_GUARD::QAB(J),XS(h)
- S(h);N_GUARD::QAB(J)
- P(e);OGATEB::QAR2(J)
Developed and maintained by Brian Stephenson.
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