MESON Chess Problem Database

Problem Display
PID: 102920 (2R5/1N3B1Q/5PK1/rn1p1R2/r2Pk1p1/1n1q4/b4P2/b1N5 w - - 0 1)

Usmanto, Fatchul

Boletim da UBP, 1962

2R5/1N3B1Q/5PK1/rn1p1R2/r2Pk1p1/1n1q4/b4P2/b1N5

#2

10 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Qh1#
    • 1...Rxd4
      • 2.Re8#
    • 1...Bxd4
      • 2.Bxd5#
    • 1...S3xd4
      • 2.Sc5#
    • 1...S5xd4
      • 2.Sd6#
    • 1...g3
      • 2.Qh4#
  • Tries
    • 1.Qh1+?
      • 1...Kxd4
        • 2.Qxd5#
      • 1...Qf3!
    • 1.Qh2?
      • threat
        • 2.Rf4#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Kxd4
        • 2.Qe5#
      • 1...Qxd4
        • 2.Qf4#
        • 2.Qh1#
        • 2.Qg2#
      • 1...Rxd4
        • 2.Re8#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Bxd4
        • 2.Bxd5#
        • 2.Qf4#
      • 1...S3xd4
        • 2.Sc5#
        • 2.Qf4#
        • 2.Qe5#
      • 1...S5xd4
        • 2.Sd6#
        • 2.Qf4#
        • 2.Qe5#
      • 1...Qd2
        • 2.Qe5#
      • 1...Qe3
        • 2.Qe5#
      • 1...Qf3
        • 2.Qe5#
      • 1...g3
        • 2.Qh4#
      • 1...Qg3!
  • Keys
    • 1.Kg5!
      • threat
        • 2.Rf4#
      • 1...Kxd4
        • 2.Rxd5#
      • 1...Qxd4
        • 2.Qh1#
      • 1...Rxd4
        • 2.Re8#
      • 1...Bxd4
        • 2.Bxd5#
      • 1...S3xd4
        • 2.Sc5#
      • 1...S5xd4
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(d);N_GUARD,SBLOCK,XP(C)::QAB(I)
    • R(e);SBLOCK,XP(C)::R(J)
    • B(a);SBLOCK,XP(C)::B(H),XP(j)
    • S(c);N_GUARD,SBLOCK,XP(C)::S(G)
    • S(i);N_GUARD,SBLOCK,XP(C)::S(G)
    • P(g);OGATEB::QAR(I)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • K(f);OGATE,P-FLIGHT,P_PINR(D),XP(C)::QAR1(I),XP(j)
      • Refutation
        • Q(d);P_SPINQ(d)
    • Try
      • Q(I);
      • Threat
        • DUALS(3)
      • Vars
        • K(f);P-FLIGHT,P_PINR(D),XP(C)::QAB1(I)
        • Q(d);::QAR1(I)
        • P(g);OGATEB::QAR(I)
      • Refutation
        • Q(d);
  • Actual
    • K(F);P-FLIGHT
    • Threat
      • QAB(I)+R(D),DCHECK
    • Vars
      • K(f);P-FLIGHT,XP(C)::R1(D),XP(j)
      • Q(d);N_GUARD,SBLOCK,XP(C)::QAB(I)
      • R(e);SBLOCK,XP(C)::R(J)
      • B(a);SBLOCK,XP(C)::B(H),XP(j)
      • S(c);N_GUARD,SBLOCK,XP(C)::S(G)
      • S(i);N_GUARD,SBLOCK,XP(C)::S(G)
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