MESON Chess Problem Database

Problem Display
PID: 125430 (4k1rR/2Bp1pP1/p6n/r2P1N2/2p1K1p1/2p1R1p1/4n3/8 w - - 0 1)

de Boer, Gerke Luiten

De Schaakwereld, 1875

4k1rR/2Bp1pP1/p6n/r2P1N2/2p1K1p1/2p1R1p1/4n3/8

#2

7 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Kxd5#
    • 1...Rf8
      • 2.Rxf8#
      • 2.gxf8Q#
      • 2.gxf8R#
    • 1...Sc1
      • 2.Kd4#
      • 2.Kf4#
    • 1...Sg1
      • 2.Kd4#
      • 2.Kf4#
    • 1...Sd4
      • 2.Kxd4#
    • 1...Sf4
      • 2.Kxf4#
    • 1...Sxf5
      • 2.Kxf5#
  • Tries
    • 1.Sxh6?
      • threat
        • 2.Kf5#
      • 1...f5+
        • 2.Kxf5#
      • 1...Ke7
        • 2.Kf5#
      • 1...Rxd5
        • 2.Kxd5#
      • 1...Sd4
        • 2.Kxd4#
      • 1...Sf4
        • 2.Kxf4#
      • 1...d6!
  • Keys
    • 1.Ke5!
      • threat
        • 2.Kd6#
        • 2.Kf6#
      • 1...Rxd5+
        • 2.Kxd5#
      • 1...d6+
        • 2.Kxd6#
      • 1...f6+
        • 2.Kxf6#
      • 1...Sxf5
        • 2.Kxf5#
      • 1...Sd4
        • 2.Kxd4#
      • 1...Sf4
        • 2.Kxf4#

This is a version of 2824

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);XP(C)::R(A)+K(B),XR(f)
    • S(a);::R(A)+K(B),XS(a)
    • S(h);XS(D)::R(A)+K(B),XS(h)
  • Tries
    • Try
      • S(D);XS(h)
      • Threat
        • R(A)+K(B)
      • Vars
        • P(j);CHECK::R(A)+K(B),XP(j)
        • K(k);N_SPINR(l),P-FLIGHT::R(A)+K(B)
        • R(f);XP(C)::R(A)+K(B),XR(f)
        • S(a);::R(A)+K(B),XS(a)
      • Refutation
        • P(i);
  • Actual
    • K(B);P-FLIGHT,P_SPINP(C)
    • Threat
      • DUALS(2)
    • Vars
      • R(f);CHECK,XP(C)::R(A)+K(B),XR(f)
      • P(i);CHECK::R(A)+K(B),XP(i)
      • P(j);CHECK::R(A)+K(B),XP(j)
      • S(h);XS(D)::R(A)+K(B),XS(h)
      • S(a);::R(A)+K(B),XS(a)
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