MESON Chess Problem Database

Problem Display
PID: 240353 (2R5/2N3B1/1qnRBN2/bp2np2/2PP4/2k2p2/3p4/1Q1K4 w - - 0 1)

Paslack, Rainer

Problem-Forum, 2007

2R5/2N3B1/1qnRBN2/bp2np2/2PP4/2k2p2/3p4/1Q1K4

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd4
      • 2.Sxb5#
    • 1...Qa7
      • 2.Sxb5#
    • 1...Bb4
      • 2.Qc2#
    • 1...Sxc4
      • 2.Sfd5#
    • 1...Sxd4
      • 2.Scd5#
    • 1...b4
      • 2.Qc2#
    • 1...f4
      • 2.Se4#
  • Tries
    • 1.Bh6?
      • threat
        • 2.Bxd2#
      • 1...Qxd4
        • 2.Sxb5#
      • 1...f4
        • 2.Se4#
      • 1...Sxc4!
    • 1.c5?
      • threat
        • 2.Qb3#
      • 1...Sc4
        • 2.Sfd5#
      • 1...Sxd4!
  • Keys
    • 1.cxb5!
      • threat
        • 2.Qb3#
      • 1...Qxb5
        • 2.Sxb5#
      • 1...Sxd4
        • 2.Scd5#
      • 1...Sc4
        • 2.Sfd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(h);N_GUARD,XP(D)::S(H),XP(e)
    • Q(h);N_GUARD::S(H),XP(e)
    • B(d);SBLOCK::QAR1(A)
    • S(f);SBLOCK,XP(C)::S(G)
    • S(i);SBLOCK,XP(D)::S(H)
    • P(e);SBLOCK::QAR1(A)
    • P(g);N_GUARD::S(G)
  • Tries
    • Try
      • B(I);
      • Threat
        • B(I),XP(a)
      • Vars
        • Q(h);N_GUARD,XP(D)::S(H),XP(e)
        • P(g);N_GUARD::S(G)
      • Refutation
        • S(f);XP(C)
    • Try
      • P(C);
      • Threat
        • QAR1(A)
      • Vars
        • S(f);SBLOCK::S(G)
      • Refutation
        • S(i);XP(D)
  • Actual
    • P(C);XP(e)
    • Threat
      • QAR1(A)
    • Vars
      • Q(h);XP(C)::S(H),XQ(h)
      • S(i);SBLOCK,XP(D)::R(J)+S(H),DCHECK
      • S(f);SBLOCK::S(G)
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