MESON Chess Problem Database

Problem Display
PID: 190115 (K1B5/2p5/1bNpP1p1/p2k4/r2P4/1P3P2/b6n/2R2Q2 w - - 0 1)

Kuijers, LA

Magyar Sakkvilag, 1913

K1B5/2p5/1bNpP1p1/p2k4/r2P4/1P3P2/b6n/2R2Q2

#2

9 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Qc4#
    • 1...Rc4
      • 2.Qxc4#
    • 1...Sxf3
      • 2.Qxf3#
  • Tries
    • 1.Rc4?
      • threat
        • 2.Se7#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Bxd4!
    • 1.Qe2?
      • threat
        • 2.Qe4#
      • 1...Rxd4
        • 2.Se7#
      • 1...Sxf3
        • 2.Qxf3#
      • 1...Bb1!
    • 1.Qd3?
      • threat
        • 2.Se7#
        • 2.Qe4#
      • 1...Bxd4
        • 2.Qe4#
      • 1...Sxf3
        • 2.Se7#
        • 2.Qxf3#
      • 1...Bb1
        • 2.Se7#
      • 1...Rxd4!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Se7#
      • 1...Kxc6
        • 2.Bb7#
      • 1...Rxd4
        • 2.Qc4#
      • 1...Bxd4
        • 2.Qb5#
      • 1...Sxf3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD::QAB1(B)
    • R(c);N_GUARD::QAB1(B),XR(c)
    • S(b);OGATE,XP(D)::QAB(B),XS(b)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(F)
      • Vars
        • R(c);OGATE,XR(A)::QAB1(B),XR(c)
        • S(b);OGATE,XP(D)::QAB(B),XS(b)
      • Refutation
        • B(f);XP(E)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • R(c);SBLOCK,XP(E)::S(F)
        • S(b);OGATE,XP(D)::QAB(B),XS(b)
      • Refutation
        • B(a);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);P_SPINB(f),XP(E)::QAB1(B)
        • B(a);::S(F)
      • Refutation
        • R(c);P_SPINR(c),XP(E)
  • Actual
    • R(A);
    • Threat
      • S(F)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XS(F)::B(I)
      • R(c);N_GUARD,P_SPINR(c),XP(E)::QAB1(B)
      • B(f);N_GUARD,P_SPINB(f),XP(E)::QAR2(B)
      • S(b);OGATE,XP(D)::QAB(B),XS(b)
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Developed and maintained by Brian Stephenson.
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