MESON Chess Problem Database

Problem Display
PID: 271934 (4R3/5p2/2N1qB2/3P1p2/r3kn1R/pQ6/2N3b1/4K3 w - - 0 1)

Pachl, Franz

Weissauer, Hermann

Rochade Europa, 1995

4R3/5p2/2N1qB2/3P1p2/r3kn1R/pQ6/2N3b1/4K3

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qe5
      • 2.Rxe5#
    • 1...Qe7
      • 2.Rxe7#
  • Tries
    • 1.S6b4?
      • threat
        • 2.Qd3#
        • 2.Qe3#
      • 1...Bf1
        • 2.Qe3#
      • 1...Rxb4!
    • 1.Se5?
      • threat
        • 2.Qd3#
      • 1...Qxd5
        • 2.Qe3#
      • 1...Qxe5
        • 2.Rxe5#
      • 1...Bf1
        • 2.Qf3#
      • 1...Qa6
        • 2.Sc6#
      • 1...Rd4!
    • 1.Be5?
      • threat
        • 2.Rxf4#
      • 1...Qxe5
        • 2.Rxe5#
      • 1...Qh6
        • 2.Bf6#
      • 1...Rc4!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qe3#
      • 1...Qxe7
        • 2.Rxe7#
      • 1...Qb6
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(g);OGATE::R1(H),XQ(g)
    • Q(g);OGATEB::R(H),XQ(g)
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAR1(C)
      • Refutation
        • R(c);XS(F)
    • Try
      • S(F);N_PINQ(g)
      • Threat
        • QAB1(C)
      • Vars
        • Q(g);SBLOCK,XP(E)::QAR1(C)
        • Q(g);OGATE,P_SPINQ(g),XS(F)::R1(H),XQ(g)
        • B(a);N_GUARD::QAB1(C)
        • Q(g);::R(H)+S(F)
      • Refutation
        • R(c);
    • Try
      • B(G);N_PINQ(g)
      • Threat
        • R1(D),XS(e)
      • Vars
        • Q(g);OGATE,P_SPINQ(g),XB(G)::R1(H),XQ(g)
        • Q(g);OGATEB::R(H)+B(G)
      • Refutation
        • R(c);
  • Actual
    • S(F);N_PINQ(g)
    • Threat
      • QAR1(C)
    • Vars
      • Q(g);OGATE,P_SPINQ(g),XS(F)::R(H),XQ(g)
      • Q(g);::R(H)+S(F)
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