MESON Chess Problem Database

Problem Display
PID: 155075 (q2r4/1b6/1p6/4P3/R1Bk1pQ1/2RN4/2nK1N1B/8 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2014

q2r4/1b6/1p6/4P3/R1Bk1pQ1/2RN4/2nK1N1B/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Qxf4#
  • Tries
    • 1.Bxf4?
      • threat
        • 2.Be3#
      • 1...Se3
        • 2.Bxe3#
      • 1...Be4!
    • 1.Ba2+?
      • 1...Sb4
        • 2.Rxb4#
      • 1...Qxa4!
    • 1.Bb3+?
      • 1...Sb4
        • 2.Rxb4#
      • 1...Qxa4!
    • 1.Be6+?
      • 1...Sb4
        • 2.Rc4#
        • 2.Rxb4#
      • 1...Qxa4!
    • 1.Bf7+?
      • 1...Sb4
        • 2.Rc4#
        • 2.Rxb4#
      • 1...Qxa4!
    • 1.Bg8+?
      • 1...Sb4
        • 2.Rc4#
        • 2.Rxb4#
      • 1...Qxa4!
  • Keys
    • 1.Sxf4!
      • threat
        • 2.Se6#
      • 1...Kc5+
        • 2.Bd3#
      • 1...Kxe5+
        • 2.Sd5#

This is a version of 154891

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(g);S_CUTB(e)::QAR2(H),XP(c)
  • Tries
    • Try
      • B(C);XP(c)
      • Threat
        • QAR(H)+B(C),DCHECK
      • Vars
        • S(a);::QAR(H)+B(C),DCHECK,XS(a)
      • Refutation
        • B(e);
    • Try
      • B(G);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R(F),XS(a)
      • Refutation
        • Q(f);XR(F)
    • Try
      • B(G);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::R(F),XS(a)
      • Refutation
        • Q(f);XR(F)
    • Try
      • B(G);CHECK
      • Refutation
        • Q(f);XR(F)
    • Try
      • B(G);CHECK
      • Refutation
        • Q(f);XR(F)
    • Try
      • B(G);CHECK
      • Refutation
        • Q(f);XR(F)
  • Actual
    • S(E);XP(c)
    • Threat
      • QAR(H)+S(E),DCHECK
    • Vars
      • K(b);CHECK,S_FLIGHT::R(D)+B(G)
      • K(b);CHECK,S_FLIGHT,XP(I)::B(C)+S(E)
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