MESON Chess Problem Database

Problem Display
PID: 184023 (1R6/8/1N1p4/4p3/PPQ1p3/kP2P3/1N1P4/KR6 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2018

1R6/8/1N1p4/4p3/PPQ1p3/kP2P3/1N1P4/KR6

#2

11 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qc1?
      • threat
        • 2.Sd3#
      • 1...Kxb3
        • 2.Sd1#
        • 2.Sd3#
        • 2.S2c4#
        • 2.Qc3#
      • 1...Kxb4!
    • 1.Qxe4?
      • 1...Kxb3
        • 2.S2c4#
      • 1...d5!
    • 1.Qc6?
      • 1...Kxb3
        • 2.Qc3#
      • 1...Kxb4
        • 2.S6c4#
      • 1...d5!
    • 1.Qc7?
      • 1...Kxb3
        • 2.Qc3#
      • 1...Kxb4
        • 2.S6c4#
      • 1...d5!
    • 1.Qc8?
      • 1...Kxb3
        • 2.Qc3#
      • 1...Kxb4
        • 2.S6c4#
      • 1...d5!
  • Keys
    • 1.Qd5!
      • 1...Kxb4
        • 2.S6c4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(I);
      • Threat
        • QAB(I)+S(C)
      • Refutation
        • K(a);S_FLIGHT,XP(H)
    • Try
      • Q(I);XP(b)
      • Vars
        • K(a);P-FLIGHT,XP(E)::R(B)+S(C)
      • Refutation
        • P(d);
    • Try
      • Q(I);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(I)
        • K(a);S_FLIGHT,XP(H)::R(K)+S(J)
      • Refutation
        • P(d);
    • Try
      • Q(I);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(I)
        • K(a);S_FLIGHT,XP(H)::R(K)+S(J)
      • Refutation
        • P(d);
    • Try
      • Q(I);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(E)::QAR1(I)
        • K(a);S_FLIGHT,XP(H)::R(K)+S(J)
      • Refutation
        • P(d);
  • Actual
    • Q(I);
    • Vars
      • K(a);S_FLIGHT,XP(H)::R(K)+S(J)
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