MESON Chess Problem Database
Problem Display
PID: 244322 (4R3/K2p1n2/pN5B/2p4R/3kN1Pq/r7/bP1pPPQ1/1n6 w - - 0 1)
Murarasu, Ion
The Problemist, 1989
#2
11 + 10
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Rd5#
- 1...Re3
- 2.Bxe3#
- 2.fxe3#
- 1...Ra4
- 2.Be3#
- 1...Ra5
- 2.Be3#
- 1...Bb3
- 2.Be3#
- 1...Bd5
- 2.Rxd5#
- 1...Sc3
- 2.Be3#
- 1...Sg5
- 2.Bg7#
- 1...c4
- 2.Rd5#
- 1...Rb3
- Tries
- 1.Sc3?
- threat
- 2.Be3#
- 2.Re4#
- 2.Qe4#
- 1...Qxf2
- 2.Re4#
- 2.Qe4#
- 2.Qxf2#
- 1...Qxg4
- 2.Be3#
- 2.Qxg4#
- 1...Rxc3
- 2.Re4#
- 2.Qe4#
- 1...Sxc3
- 2.Be3#
- 1...Sxh6
- 2.Re4#
- 2.Qe4#
- 1...d1S
- 2.Re4#
- 2.Qe4#
- 1...Qg3
- 2.Re4#
- 2.Qe4#
- 1...Qg5
- 2.Re4#
- 2.Qe4#
- 1...Qh1
- 2.Be3#
- 2.Re4#
- 1...Qh3
- 2.Re4#
- 2.Qe4#
- 1...Bd5
- 2.Be3#
- 2.Rxd5#
- 2.Qxd5#
- 1...Be6
- 2.Be3#
- 2.Qe4#
- 1...Se5
- 2.Be3#
- 2.Qe4#
- 1...Sg5
- 2.Bg7#
- 1...Sd6
- 2.Be3#
- 1...d5
- 2.Be3#
- 1...Qe7!
- threat
- 1.Bg7+?
- 1...Se5
- 2.Bxe5#
- 1...Qf6!
- 1...Se5
- 1.b3?
- threat
- 2.Be3#
- 2.Rd5#
- 1...Qxf2
- 2.Rd5#
- 2.Qxf2#
- 1...Qxh5
- 2.Be3#
- 1...Rxb3
- 2.Rd5#
- 1...Bxb3
- 2.Be3#
- 1...Sxh6
- 2.Rd5#
- 1...d1S
- 2.Rd5#
- 1...Qg3
- 2.Rd5#
- 1...Qh3
- 2.Rd5#
- 1...Sc3
- 2.Be3#
- 1...Se5
- 2.Be3#
- 1...Sg5
- 2.Bg7#
- 1...d5
- 2.Be3#
- 2.Rxd5#
- 1...Qg5!
- threat
- 1.Sc3?
- Keys
- 1.Sg5!
- threat
- 2.Re4#
- 2.Qe4#
- 1...Qxg4
- 2.Qxg4#
- 1...Sxg5
- 2.Bg7#
- 1...Be6
- 2.Qe4#
- 1...c4
- 2.Qd5#
- 1...Qh1
- 2.Re4#
- 1...Re3
- 2.fxe3#
- 1...Rf3
- 2.Sxf3#
- 2.Re4#
- 1...Bd5
- 2.Qxd5#
- 1...Sc3
- 2.Sf3#
- 1...Se5
- 2.Qe4#
- 1...Sd6
- 2.Bg7#
- 1...d5
- 2.Se6#
- threat
- 1.Sg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 4
- Sets
- R(d);S_CUTB(b)::R1(G)
- R(d);N_GUARD::B(I)
- B(b);S_CUTR(d)::B(I)
- B(b);N_GUARD::R1(G),XB(b)
- S(a);S_CUTR(d)::B(I)
- S(j);N_GUARD,S_CUTQ(f)::B(I)
- P(g);S_CUTB(b)::R1(G)
- Tries
- Try
- S(E);
- Threat
- DUALS(3)
- Vars
- S(a);XS(E)::B(I)
- S(j);N_GUARD,S_CUTQ(f)::B(I)
- S(j);::B(I)
- P(i);::B(I)
- Refutation
- Q(f);
- Try
- B(I);CHECK
- Vars
- S(j);N_GUARD,P_SPINS(j)::B(I),XS(j)
- Refutation
- Q(f);P_SPINQ(f)
- Try
- P(A);
- Threat
- DUALS(2)
- Vars
- Q(f);XR(G)::B(I)
- R(d);XP(A)::R1(G)
- B(b);XP(A)::B(I)
- S(j);XB(I)::R1(G)
- P(c);::R1(G)
- Q(f);::R1(G)
- S(a);::B(I)
- S(j);::B(I)
- S(j);N_GUARD,S_CUTQ(f)::B(I)
- Refutation
- Q(f);
- Try
- Actual
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(f);OGATE,XP(F)::QAR(D),XQ(f)
- S(j);N_GUARD,XS(E)::B(I)
- B(b);::QAR1(D)
- P(g);S_CUTB(b)::QAR1(D)
- Q(f);::R1(K)
- R(d);OGATE::P(C),XR(d)
- B(b);N_GUARD::QAR1(D),XB(b)
- S(a);S_CUTR(d)::S(E)
- S(j);::QAR1(D)
- S(j);N_GUARD::B(I)
- P(i);N_GUARD,S_CUTB(b)::S(E)
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