MESON Chess Problem Database

Problem Display
PID: 271559 (2R5/1P1pp3/RN2P2p/1pN1k2P/1Q1p2K1/1P1P4/8/8 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2023

2R5/1P1pp3/RN2P2p/1pN1k2P/1Q1p2K1/1P1P4/8/8

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qxd4#
      • 2.b8Q#
      • 2.b8B#
    • 1...Kf6
      • 2.Qxd4#
    • 1...dxe6
      • 2.Scd7#
    • 1...d5
      • 2.Sbd7#
  • Tries
    • 1.Rf8?
      • 1...dxe6
        • 2.Scd7#
        • 2.b8Q#
        • 2.b8B#
      • 1...d6
        • 2.Rf5#
        • 2.Qe1#
      • 1...d5
        • 2.Sbd7#
        • 2.b8Q#
        • 2.b8B#
      • 1...Kd6!
    • 1.Qe1+?
      • 1...Kd6
        • 2.Qg3#
        • 2.b8Q#
        • 2.b8B#
      • 1...Kf6!
    • 1.Qd2?
      • threat
        • 2.Qf4#
      • 1...Kd6
        • 2.Qf4#
        • 2.Qh2#
        • 2.b8Q#
        • 2.b8B#
      • 1...Kf6!
    • 1.Qc4?
      • threat
        • 2.Sbxd7#
      • 1...Kd6
        • 2.Sbxd7#
        • 2.Qd5#
        • 2.Qxd4#
        • 2.b8Q#
        • 2.b8B#
      • 1...Kf6
        • 2.Qxd4#
      • 1...dxe6
        • 2.Sbd7#
        • 2.Qxe6#
      • 1...d6
        • 2.Scd7#
        • 2.Sbd7#
      • 1...d5
        • 2.Sbd7#
      • 1...bxc4!
    • 1.b8Q+?
      • 1...Kf6
        • 2.Qxd4#
      • 1...d6!
    • 1.b8B+?
      • 1...Kf6
        • 2.Qxd4#
      • 1...d6!
    • 1.b8R?
      • 1...Kd6
        • 2.Qxd4#
      • 1...Kf6
        • 2.Qxd4#
      • 1...dxe6
        • 2.Scd7#
      • 1...d5
        • 2.Sbd7#
      • 1...d6!
  • Keys
    • 1.b8S!
      • 1...Kd6
        • 2.Qxd4#
      • 1...Kf6
        • 2.Qxd4#
      • 1...dxe6
        • 2.Sc5d7#
      • 1...d6
        • 2.Sb8d7#
      • 1...d5
        • 2.Sb6d7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
    • P(e);SBLOCK,XP(I)::S(E)
    • P(e);SBLOCK::S(H)
  • Tries
    • Try
      • R(K);
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • S(H),XP(e)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
        • P(e);::S(H)
      • Refutation
        • P(b);XQ(C)
    • Try
      • P(J);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • P(J);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • P(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR2(C),XP(a)
        • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
        • P(e);SBLOCK,XP(I)::S(E)
        • P(e);SBLOCK::S(H)
      • Refutation
        • P(e);
  • Actual
    • P(J);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::QAR2(C),XP(a)
      • K(c);N_GUARD,S_FLIGHT::QAB(C),XP(a)
      • P(e);SBLOCK,XP(I)::S(E)
      • P(e);SBLOCK::S(J)
      • P(e);SBLOCK::S(H)
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