MESON Chess Problem Database
Problem Display
PID: 275621 (3r4/2p5/pbN2Q2/pPkP4/K2p4/1R1P4/1pN1PPr1/2R4B w - - 0 1)
Guida, Marco
Moen, Kabe
Problemist Ukraini, 2023
#2
12 + 9
SOLUTION
- SOUND
- Sets
- 1...Kxd5
- 2.Qe5#
- 1...Rd6
- 2.Qxd4#
- 1...axb5+
- 2.Rxb5#
- 1...Kxd5
- Tries
- 1.S6b4?
- threat
- 2.Qc6#
- 1...Rg6
- 2.Sxa6#
- 1...Rd6
- 2.Qxd4#
- 1...c6
- 2.Qxc6#
- 1...axb5+!
- threat
- 1.S6xd4?
- threat
- 2.Qc6#
- 1...axb5+
- 2.Rxb5#
- 1...Kxd5
- 2.Se3#
- 1...Rg6
- 2.Rc3#
- 1...c6
- 2.Qxc6#
- 1...Rd6!
- threat
- 1.Se7?
- threat
- 2.Qc6#
- 1...axb5+
- 2.Rxb5#
- 1...Rd6
- 2.Qxd4#
- 1...c6
- 2.Qxc6#
- 1...Rg6!
- threat
- 1.Sb8?
- threat
- 2.Qc6#
- 1...axb5+
- 2.Rxb5#
- 1...Rg6
- 2.Sxa6#
- 1...Rd6
- 2.Qxd4#
- 1...c6
- 2.Qxc6#
- 1...Kxd5!
- threat
- 1.Sxd8?
- threat
- 2.Qc6#
- 1...axb5+
- 2.Rxb5#
- 1...Rg6
- 2.Sb7#
- 1...c6
- 2.Qxc6#
- 1...Kxd5!
- threat
- 1.Rxb2?
- threat
- 2.Se3#
- 2.S2b4#
- 1...axb5+
- 2.Rxb5#
- 1...Kxd5
- 2.Qe5#
- 1...Rg1
- 2.Se1#
- 1...Ba7!
- threat
- 1.Rc3+?
- 1...Kxd5
- 2.Se7#
- 2.Bxg2#
- 2.Qe5#
- 1...dxc3!
- 1...Kxd5
- 1.Qe7+?
- 1...Kxd5
- 2.Bxg2#
- 2.Qe5#
- 1...Rd6!
- 1...Kxd5
- 1.S6b4?
- Keys
- 1.Sxa5!
- threat
- 2.Qc6#
- 1...axb5+
- 2.Rxb5#
- 1...Kxd5
- 2.Sb4#
- 1...Rg6
- 2.Sb7#
- 1...Rd6
- 2.Qxd4#
- 1...c6
- 2.Qxc6#
- threat
- 1.Sxa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(e);OGATEB,P-FLIGHT,P_SPINR(b),XP(J)::QAR1(L)
- R(i);SBLOCK::QAB1(L),XP(c)
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- Tries
- Try
- S(K);
- Threat
- QAR1(L)
- Vars
- R(b);::S(K),XP(f)
- R(i);SBLOCK::QAB1(L),XP(c)
- P(h);::QAR1(L),XP(h)
- Refutation
- P(f);CHECK,XP(I)
- Try
- S(K);XP(c)
- Threat
- QAR1(L)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- K(e);P-FLIGHT,P_SPINR(b),S_CUTP(a),S_CUTP(a),S_CUTP(a),S_CUTP(a),XP(J)::S(C)
- R(b);::R(F)
- P(h);::QAR1(L),XP(h)
- Refutation
- R(i);
- Try
- S(K);
- Threat
- QAR1(L)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- R(i);SBLOCK::QAB1(L),XP(c)
- P(h);::QAR1(L),XP(h)
- Refutation
- R(b);
- Try
- S(K);
- Threat
- QAR1(L)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- R(b);::S(K),XP(f)
- R(i);SBLOCK::QAB1(L),XP(c)
- P(h);::QAR1(L),XP(h)
- Refutation
- K(e);P-FLIGHT,P_SPINR(b),XP(J)
- Try
- S(K);XR(i)
- Threat
- QAR1(L)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- R(b);::S(K)
- P(h);::QAR1(L),XP(h)
- Refutation
- K(e);P-FLIGHT,P_SPINR(b),XP(J)
- Try
- R(F);XP(a)
- Threat
- DUALS(2)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- K(e);OGATEB,P-FLIGHT,P_SPINR(b),XP(J)::QAR1(L)
- R(b);::R(A)+S(C)
- Refutation
- B(g);
- Try
- R(F);CHECK
- Refutation
- P(c);XR(F)
- Try
- Q(L);CHECK
- Refutation
- R(i);P_SPINR(i)
- Try
- Actual
- S(K);XP(d)
- Threat
- QAR1(L)
- Vars
- P(f);CHECK,OGATE,XP(I)::R1(F),XP(f)
- K(e);P-FLIGHT,P_SPINR(b),S_CUTP(a),S_CUTP(a),S_CUTP(a),S_CUTP(a),XP(J)::S(C)
- R(b);::S(K)
- R(i);SBLOCK::QAB1(L),XP(c)
- P(h);::QAR1(L),XP(h)
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