MESON Chess Problem Database

Problem Display
PID: 156889 (6B1/3K2pN/4N3/1Rp2k1p/2Q3br/5p2/1r1b4/B1n3R1 w - - 0 1)

Aaholst, Svend

Larsen, Lars Aksglade (= Aksglade, Lars)

Thema Danicum, 1981

6B1/3K2pN/4N3/1Rp2k1p/2Q3br/5p2/1r1b4/B1n3R1

#2

8 + 10

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Rxc5#
    • 1...Bh3
      • 2.Rxc5#
      • 2.Qd5#
    • 1...g6
      • 2.Rxc5#
      • 2.Qd5#
  • Tries
    • 1.Bf7?
      • threat
        • 2.Rxc5#
        • 2.Qd5#
      • 1...Ke5
        • 2.Rxc5#
      • 1...Rxb5
        • 2.Sxg7#
        • 2.Qd5#
      • 1...Bc3
        • 2.Qf4#
      • 1...Be3
        • 2.Qd5#
      • 1...Bb4
        • 2.Qd5#
        • 2.Qf4#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Sb3
        • 2.Qd5#
      • 1...Sd3!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Rxc5#
      • 1...Sxd3!
    • 1.Qf4+?
      • 1...Kg6
        • 2.Sf8#
      • 1...Bxf4!
    • 1.Qxc5+?
      • 1...Ke4
        • 2.Qd4#
      • 1...Kg6!
  • Keys
    • 1.Sxc5!
      • threat
        • 2.Qe4#
      • 1...Ke5+
        • 2.Se6#
      • 1...Kg6+
        • 2.Qe6#
      • 1...Rb4
        • 2.Qf7#
      • 1...Bh3
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(h);P-FLIGHT,P_PINS(E),P_SPINR(b)::R(D),XP(g)
  • Tries
    • Try
      • B(H);
      • Threat
        • DUALS(2)
      • Vars
        • K(h);P-FLIGHT,P_PINS(E),P_SPINR(b)::R(D),XP(g)
        • B(c);N_GUARD::QAR1(C)
        • B(c);::QAR2(C)
        • B(c);N_GUARD::QAR1(C),XB(c)
        • S(a);::QAR2(C)
      • Refutation
        • S(a);
    • Try
      • Q(C);CHECK
      • Vars
        • K(h);P-FLIGHT,P_PINS(E),P_SPINR(b)::R(D),XP(g)
      • Refutation
        • S(a);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(h);N_SPINP(g),P_PINS(E),P_SPINB(e),S_FLIGHT::S(G)
      • Refutation
        • B(c);XQ(C)
    • Try
      • Q(C);CHECK,XP(g)
      • Vars
        • K(h);P_PINS(E),S_FLIGHT::QAR1(C)
      • Refutation
        • K(h);P_PINS(E),P_SPINB(e),S_FLIGHT
  • Actual
    • S(E);XP(g)
    • Threat
      • QAB1(C)
    • Vars
      • K(h);CHECK,P-FLIGHT,P_SPINR(b)::R(D)+S(E)
      • K(h);CHECK,P_SPINB(e),S_FLIGHT::QAR2(C)
      • R(b);::QAR2(C)
      • B(e);::R(D)+S(E)
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