MESON Chess Problem Database

Problem Display
PID: 240291 (1n3B2/1K6/2p5/kNp4R/b1P5/Q7/3bn3/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Problem-Forum, 2004

1n3B2/1K6/2p5/kNp4R/b1P5/Q7/3bn3/8

#2

6 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • threat
        • 2.Rxc5#
        • 2.Qxa4#
      • 1...Bxc3
        • 2.Rxc5#
      • 1...Be3
        • 2.Qxa4#
      • 1...Bg5
        • 2.Qxa4#
      • 1...Sd4
        • 2.Qxa4#
      • 1...Sa6
        • 2.Qxa4#
      • 1...Sd7
        • 2.Qxa4#
      • 1...Sxc3!
    • 1.Sd4?
      • threat
        • 2.Sb3#
        • 2.Rxc5#
      • 1...Bb4
        • 2.Sb3#
      • 1...Bg5
        • 2.Sb3#
      • 1...Sc1
        • 2.Rxc5#
      • 1...Sc3
        • 2.Sb3#
      • 1...Sa6
        • 2.Sb3#
        • 2.Sxc6#
      • 1...Sd7
        • 2.Sb3#
        • 2.Sxc6#
      • 1...Sxd4!
    • 1.Bxc5?
      • threat
        • 2.Bb6#
      • 1...Be3
        • 2.Bb4#
        • 2.Qb4#
      • 1...Sd7!
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Qb6#
      • 1...Bxb5
        • 2.Qa3#
      • 1...Bd1
        • 2.Sc3#
      • 1...Bc2
        • 2.Sc3#
      • 1...Bb3
        • 2.Sc3#
      • 1...Be3
        • 2.Qb4#
      • 1...Sd7
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);P_PINP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);XS(C)::R(D),XP(e)
        • B(a);::QAR1(A),XB(c)
        • B(a);N_SPINP(e)::QAR1(A),XB(c)
        • S(b);::QAR1(A),XB(c)
        • S(g);::QAR1(A),XB(c)
      • Refutation
        • S(b);XS(C)
    • Try
      • S(C);P_PINP(e)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(C)
        • B(a);N_SPINP(e)::S(C)
        • S(b);::R(D),XP(e)
        • S(b);::S(C)
      • Refutation
        • S(b);XS(C)
    • Try
      • B(F);XP(e)
      • Threat
        • B(F)
      • Refutation
        • S(g);
  • Actual
    • Q(A);N_PINB(c),XP(e)
    • Threat
      • QAB1(A)
    • Vars
      • B(c);OGATEB,P_SPINB(c),XS(C)::QAR2(A)
      • B(c);N_GUARD::QAR(A)+S(C)
      • B(a);N_GUARD::QAB1(A)
      • S(g);N_GUARD::QAR2(A)
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