MESON Chess Problem Database

Problem Display
PID: 178596 (1n6/2b2p1K/1p1q1Rp1/4k2N/3Nr1P1/Q2R1P2/Bp6/B3r3 w - - 0 1)

Szoghy, Jozsef

Boletim da UBP, 1981

1n6/2b2p1K/1p1q1Rp1/4k2N/3Nr1P1/Q2R1P2/Bp6/B3r3

#2

10 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qe7
      • 2.Qxe7#
    • 1...Qxd4
      • 2.Qe7#
    • 1...Bd8
      • 2.Qxd6#
    • 1...b1Q
      • 2.Sc6#
    • 1...b1S
      • 2.Sc6#
    • 1...b1B
      • 2.Sc6#
    • 1...b1R
      • 2.Sc6#
    • 1...gxh5
      • 2.Rf5#
    • 1...g5
      • 2.Rf5#
  • Tries
    • 1.Bxb2?
      • threat
        • 2.Sc6#
      • 1...Qxd4
        • 2.Qe7#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Sc6
        • 2.Sxc6#
      • 1...Rxd4!
  • Keys
    • 1.Qxb2!
      • threat
        • 2.Sc6#
      • 1...Qxd4
        • 2.Qb5#
      • 1...Rxd4
        • 2.Qh2#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Sc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(f);OGATE::QAR2(C),XQ(f)
    • Q(f);OGATE,XS(F)::QAR2(C)
    • B(h);N_GUARD::QAB1(C),XQ(f)
    • P(b);::B(A)+S(F),DCHECK
    • P(g);N_GUARD,XS(H)::R1(I)
    • P(g);N_GUARD::R1(I)
  • Tries
    • Try
      • B(A);XP(b)
      • Threat
        • B(A)+S(F),DCHECK
      • Vars
        • Q(f);OGATE,P_SPINQ(f),XS(F)::QAR2(C)
        • Q(f);::B(A)+S(F),DCHECK,XQ(f)
        • S(j);::B(A)+S(F),DCHECK,XS(j)
      • Refutation
        • R(c);P_SPINR(c),XS(F)
  • Actual
    • Q(C);XP(b)
    • Threat
      • QAB(C)+S(F),DCHECK
    • Vars
      • Q(f);N_GUARD,P_SPINQ(f),XS(F)::QAR(C)
      • R(c);N_GUARD,P_SPINR(c),XS(F)::QAB(C)
      • Q(f);::QAB(C)+S(F),DCHECK,XQ(f)
      • S(j);::QAB(C)+S(F),DCHECK,XS(j)
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