MESON Chess Problem Database

Problem Display
PID: 233528 (4R3/5p1q/1n5B/1K1Pp1pp/Nb2k1pR/8/B1P2QP1/8 w - - 0 1)

Supp, Walter

Freie Presse, 1997

4R3/5p1q/1n5B/1K1Pp1pp/Nb2k1pR/8/B1P2QP1/8

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sc5#
    • 1...Bd2
      • 2.Sc5#
    • 1...Ba3
      • 2.Sc3#
    • 1...Bc3
      • 2.Sxc3#
      • 2.Sc5#
    • 1...Ba5
      • 2.Sc5#
    • 1...Bc5
      • 2.Sc3#
      • 2.Sxc5#
    • 1...Bd6
      • 2.Sc3#
    • 1...Be7
      • 2.Sc3#
    • 1...Bf8
      • 2.Sc3#
    • 1...gxh4
      • 2.Qf4#
  • Tries
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qxe5#
      • 1...Kf4
        • 2.Qf3#
        • 2.Qxe5#
      • 1...Kf5!
    • 1.c4?
      • threat
        • 2.Bb1#
      • 1...Kd3
        • 2.Bb1#
      • 1...Sxc4!
  • Keys
    • 1.c3!
      • threat
        • 2.Qf3#
      • 1...Kd3
        • 2.Bb1#
      • 1...Bxc3
        • 2.Sc5#
      • 1...gxh4
        • 2.Qc2#
      • 1...Qf5
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • B(a);N_GUARD::S(E)
    • P(e);N_GUARD,N_SPINP(c),P_SPINP(d),XR(F)::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(C),XP(d)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • P(B);
      • Threat
        • B(A)
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::B(A)
      • Refutation
        • S(g);XP(B)
  • Actual
    • P(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);N_SPINP(c),S_FLIGHT::B(A)
      • B(a);N_GUARD,XP(B)::S(E)
      • P(e);N_SPINP(c),P_SPINP(d),XR(F)::QAB(C)
      • Q(i);SBLOCK::QAR1(C)
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