MESON Chess Problem Database

Problem Display
PID: 165456 (4R3/K1Q3BB/pp2b2r/1p2p2r/1P1k1P2/2NN2R1/3p4/2n5 w - - 0 1)

Rehn, Gunnar

Tidskrift for Schack, 1946

4R3/K1Q3BB/pp2b2r/1p2p2r/1P1k1P2/2NN2R1/3p4/2n5

#2

10 + 10

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Bxe5#
    • 1...Rh2
      • 2.Bxe5#
    • 1...Rh3
      • 2.Bxe5#
    • 1...Rh4
      • 2.Bxe5#
    • 1...Bf5
      • 2.Bxe5#
    • 1...Sxd3
      • 2.Rxd3#
  • Tries
    • 1.Rd8+?
      • 1...Bd5
        • 2.Rxd5#
      • 1...Bd7!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Qxb6#
      • 1...Rxe5
        • 2.Bxe5#
      • 1...Ba2
        • 2.Sf3#
      • 1...Bb3
        • 2.Sf3#
      • 1...Bh3
        • 2.Sf3#
      • 1...Bc4
        • 2.Sf3#
        • 2.Sc6#
      • 1...Bg4
        • 2.Sf3#
      • 1...Bd5
        • 2.Sf3#
      • 1...Bf5
        • 2.Sg6#
      • 1...Bd7
        • 2.Sf3#
      • 1...Bf7
        • 2.Sf3#
      • 1...Bc8
        • 2.Sf3#
      • 1...Bg8
        • 2.Sf3#
      • 1...Sb3
        • 2.Rd3#
      • 1...Sd3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 11
    • REMOVED MATES = 4
  • Sets
    • R(f);N_GUARD::B(H),XP(e)
    • B(i);S_CUTR(f)::B(H),XP(e)
    • S(a);OGATE,XS(B)::R1(C),XS(a)
  • Tries
    • Try
      • R(J);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::R1(J),XB(i)
      • Refutation
        • B(i);P_SPINB(i)
  • Actual
    • S(B);XP(e)
    • Threat
      • QAB(G),XP(h)
    • Vars
      • R(f);OGATE,P_SPINR(f),XS(B)::B(H),XR(f)
      • B(i);::B(H)+S(B),DCHECK
      • B(i);S_CUTR(f)::B(H)+S(B)
      • S(a);N_GUARD::R1(C)
      • S(a);N_GUARD::R1(C),XS(a)
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