MESON Chess Problem Database

Problem Display
PID: 235354 (1b1Bn2r/3p1b2/1N1Nk3/K5R1/p7/Q7/4n3/4r3 w - - 0 1)

Paslack, Rainer

8th HM., Europa-Rochade, 1988

1b1Bn2r/3p1b2/1N1Nk3/K5R1/p7/Q7/4n3/4r3

#2

6 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd6
      • 2.Qa2#
  • Tries
    • 1.Sdc4?
      • threat
        • 2.Qe7#
      • 1...Sd6
        • 2.Re5#
      • 1...d6
        • 2.Qe3#
      • 1...Bd6!
    • 1.Se4?
      • threat
        • 2.Qe7#
      • 1...Bd6
        • 2.Qa2#
      • 1...Sd6
        • 2.Sc5#
      • 1...d6!
    • 1.Sb5?
      • threat
        • 2.Qe7#
      • 1...Bd6
        • 2.Qa2#
      • 1...d6
        • 2.Qe3#
      • 1...Sd6!
    • 1.Sf5?
      • threat
        • 2.Qe7#
      • 1...Ke5
        • 2.Qe3#
      • 1...Sd6
        • 2.Sg7#
      • 1...d6
        • 2.Qe3#
      • 1...Bd6!
    • 1.Sdc8?
      • threat
        • 2.Qe7#
      • 1...Bd6
        • 2.Qa2#
      • 1...d6
        • 2.Qe3#
      • 1...Sd6!
    • 1.Sxe8?
      • threat
        • 2.Sg7#
        • 2.Qe7#
      • 1...Bxe8
        • 2.Qe7#
      • 1...Bh5
        • 2.Qe7#
      • 1...Bg6
        • 2.Qe7#
      • 1...Bg8
        • 2.Qe7#
      • 1...Rh7
        • 2.Qe7#
      • 1...Rg8
        • 2.Qe7#
        • 2.Qh3#
      • 1...Be5
        • 2.Qe7#
      • 1...Bd6
        • 2.Sg7#
        • 2.Qxd6#
        • 2.Qa2#
      • 1...d6
        • 2.Sg7#
        • 2.Qe3#
      • 1...Rxe8!
    • 1.Qh3+?
      • 1...Kxd6
        • 2.Qxd7#
      • 1...Rxh3!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Qe7#
      • 1...Bd6
        • 2.Qa2#
      • 1...Sd6
        • 2.Sc5#
      • 1...d6
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(g);SBLOCK,XS(E)::QAB(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • S(h);S_CUTB(g)::R1(C)
        • P(e);S_CUTB(g)::QAR(A)
      • Refutation
        • B(g);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • B(g);S_CUTP(e)::QAB(A)
        • S(h);SBLOCK::S(E)
      • Refutation
        • P(e);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • B(g);S_CUTP(e)::QAB(A)
        • P(e);S_CUTB(g)::QAR(A)
      • Refutation
        • S(h);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • K(d);P-FLIGHT::QAR2(A)
        • S(h);N_GUARD::S(E)
        • P(e);S_CUTB(g)::QAR(A)
      • Refutation
        • B(g);
    • Try
      • S(E);
      • Threat
        • QAR1(A)
      • Vars
        • B(g);S_CUTP(e)::QAB(A)
        • P(e);S_CUTB(g)::QAR(A)
      • Refutation
        • S(h);
    • Try
      • S(E);XS(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(f);XS(E)::QAR1(A)
        • B(f);::QAR1(A)
        • R(i);::QAR1(A)
        • B(g);::QAR1(A)
      • Refutation
        • R(i);XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,P-FLIGHT,XS(E)::QAR1(A),XP(e)
      • Refutation
        • R(i);XQ(A)
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • B(g);S_CUTP(e)::QAB(A)
      • S(h);SBLOCK::S(E)
      • P(e);S_CUTB(g)::QAR(A)
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