MESON Chess Problem Database

Problem Display
PID: 15998 (8/8/8/8/2p5/pp6/1R6/k1K4Q w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2000

8/8/8/8/2p5/pp6/1R6/k1K4Q

#2

3 + 4

4883 Still More Fun with Chess Miniatures 2002
145 StrateGems 2012
136 Problem Observer 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Ra2+?
      • 1...bxa2
        • 2.Kc2#
      • 1...Kxa2!
    • 1.Qg2?
      • threat
        • 2.Rb1#
      • 1...axb2+
        • 2.Qxb2#
      • 1...a2!
    • 1.Qh2?
      • threat
        • 2.Rb1#
      • 1...axb2+
        • 2.Qxb2#
      • 1...a2!
    • 1.Qh8?
      • 1...axb2+
        • 2.Qxb2#
      • 1...a2
        • 2.Rb1#
      • 1...c3!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qxa3#
      • 1...a2
        • 2.Rb1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • P(c);SBLOCK,XR(C)::QAR(B)+K(A)
      • Refutation
        • K(a);P-FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • R1(C)
      • Vars
        • P(b);CHECK,OGATE,XR(C)::QAB1(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Threat
        • R1(C)
      • Vars
        • P(b);CHECK,OGATE,XR(C)::QAB1(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • P(b);CHECK,OGATE,P_SPINP(b),XR(C)::QAB1(B),XP(b)
        • P(b);SBLOCK::QAB(B)+R(C),DCHECK
      • Refutation
        • P(d);
  • Actual
    • Q(B);P_PINP(b)
    • Threat
      • QAR2(B),XP(b)
    • Vars
      • P(b);::R1(C)
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