MESON Chess Problem Database

Problem Display
PID: 261051 (4R3/b1qP2p1/Q1n5/4P1PP/1NnpkNBR/4p2K/4P2B/8 w - - 0 1)

Paslack, Rainer

Neue Zurcher Zeitung, 2006

4R3/b1qP2p1/Q1n5/4P1PP/1NnpkNBR/4p2K/4P2B/8

#2

13 + 8

5454 Near Snap 2022
6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Qxc6#
    • 1...Qb8
      • 2.Qxc6#
    • 1...Qd8
      • 2.Qxc6#
    • 1...Sd2
      • 2.Qd3#
    • 1...Sa3
      • 2.Qd3#
    • 1...S4a5
      • 2.Qd3#
    • 1...S4xe5
      • 2.Qd3#
    • 1...Sb6
      • 2.Qd3#
    • 1...Sd6
      • 2.Qd3#
    • 1...Sxb4
      • 2.Qg6#
    • 1...S6a5
      • 2.Qg6#
    • 1...S6xe5
      • 2.Qg6#
    • 1...Sb8
      • 2.Qg6#
    • 1...Sd8
      • 2.Qg6#
  • Tries
    • 1.Sfd3?
      • threat
        • 2.Be6#
      • 1...Qxe5
        • 2.Qxc6#
      • 1...S6xe5
        • 2.Qg6#
      • 1...S4xe5!
    • 1.Sfd5?
      • threat
        • 2.Be6#
      • 1...S4xe5
        • 2.Qd3#
      • 1...S6xe5
        • 2.Qg6#
      • 1...Qxe5!
    • 1.Sg6?
      • threat
        • 2.Be6#
      • 1...Qxe5
        • 2.Qxc6#
      • 1...S4xe5
        • 2.Qd3#
      • 1...S6xe5!
  • Keys
    • 1.Sg2!
      • threat
        • 2.Be6#
      • 1...Qxe5
        • 2.Qxc6#
      • 1...S4xe5
        • 2.Qd3#
      • 1...S6xe5
        • 2.Qg6#

Anticipated by 48245(1989)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • Q(g);N_GUARD,P_SPINQ(g),XP(H)::QAB(K),XS(e)
    • Q(g);N_GUARD::QAB(K),XS(e)
    • S(b);OGATE::QAB1(K)
    • S(b);OGATE,P_SPINS(b),XP(H)::QAB1(K)
    • S(e);OGATE,XS(D)::QAB(K)
    • S(e);OGATE::QAB(K)
    • S(e);OGATE,P_SPINS(e),XP(H)::QAB(K)
  • Tries
    • Try
      • S(E);
      • Threat
        • R(G)+B(F)
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g),XP(H)::QAB(K),XS(e)
        • S(e);OGATE,P_SPINS(e),XP(H)::QAB(K)
      • Refutation
        • S(b);P_SPINS(b),XP(H)
    • Try
      • S(E);
      • Threat
        • R(G)+B(F)
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(H)::QAB1(K)
        • S(e);OGATE,P_SPINS(e),XP(H)::QAB(K)
      • Refutation
        • Q(g);P_SPINQ(g),XP(H)
    • Try
      • S(E);
      • Threat
        • R(G)+B(F)
      • Vars
        • Q(g);N_GUARD,P_SPINQ(g),XP(H)::QAB(K),XS(e)
        • S(b);OGATE,P_SPINS(b),XP(H)::QAB1(K)
      • Refutation
        • S(e);P_SPINS(e),XP(H)
  • Actual
    • S(E);
    • Threat
      • R(G)+B(F)
    • Vars
      • Q(g);N_GUARD,P_SPINQ(g),XP(H)::QAB(K),XS(e)
      • S(b);OGATE,P_SPINS(b),XP(H)::QAB1(K)
      • S(e);OGATE,P_SPINS(e),XP(H)::QAB(K)
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