MESON Chess Problem Database

Problem Display
PID: 214266 (2B2B2/2pN1R2/1p1p4/k3nR2/P1p5/Kp1rQ3/1P2r2b/8 w - - 0 1)

Sauso, Arno

Suomen Shakki, 1947

2B2B2/2pN1R2/1p1p4/k3nR2/P1p5/Kp1rQ3/1P2r2b/8

#2

9 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Qc3#
    • 1...Rd2
      • 2.Qc3#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Rd4
      • 2.Qc3#
    • 1...Rd5
      • 2.Qc3#
    • 1...b5
      • 2.Qa7#
    • 1...d5
      • 2.Bb4#
    • 1...c6
      • 2.Qxb6#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Sxc4#
        • 2.Sc6#
      • 1...dxe5
        • 2.Bb4#
      • 1...c3
        • 2.Sc4#
        • 2.Sc6#
      • 1...c6
        • 2.Sxc4#
        • 2.Sxc6#
        • 2.Ra7#
      • 1...Bxe5!
    • 1.Bxd6?
      • threat
        • 2.Bb4#
      • 1...Rxd6
        • 2.Qc3#
      • 1...cxd6
        • 2.Qxb6#
      • 1...c5!
  • Keys
    • 1.Sb8!
      • threat
        • 2.Sc6#
      • 1...Rd5
        • 2.Qc3#
      • 1...b5
        • 2.Qa7#
      • 1...d5
        • 2.Bb4#
      • 1...c5
        • 2.Ra7#
      • 1...c6
        • 2.Sxc6#
        • 2.Ra7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(d);OGATE::QAB(C)
    • R(d);OGATE::QAB(C),XR(d)
    • R(d);N_SPINS(g),OGATE::QAB(C)
    • P(h);N_SPINS(g),OGATE::QAR2(C)
    • P(i);N_SPINS(g),OGATE::B(I)
    • P(j);N_GUARD::QAB1(C),XP(h)
  • Tries
    • Try
      • S(F);XS(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);OGATE,P_SPINP(i),XS(F)::B(I)
      • Refutation
        • B(b);P_SPINB(b),XS(F)
    • Try
      • B(I);XP(i)
      • Threat
        • B(I)
      • Vars
        • R(d);OGATE,XB(I)::QAB(C)
        • P(j);N_GUARD,XB(I)::QAB1(C),XP(h)
      • Refutation
        • P(j);N_SPINS(g)
  • Actual
    • S(F);
    • Threat
      • S(F)
    • Vars
      • R(d);N_SPINS(g),OGATE::QAB(C)
      • P(h);N_SPINS(g),OGATE::QAR2(C)
      • P(i);N_SPINS(g),OGATE::B(I)
      • P(j);N_SPINS(g),OGATE::R(G)
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