MESON Chess Problem Database

Problem Display
PID: 241098 (6q1/1bN2N2/1K1Q2rp/4pp2/4kb1R/1R2Br2/n6p/6nB w - - 0 1)

Ahues, Herbert Siegfried Oskar

Sachsische Zeitung, 2014

6q1/1bN2N2/1K1Q2rp/4pp2/4kb1R/1R2Br2/n6p/6nB

#2

8 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Qxe5#
      • 2.Qd3#
    • 1...Rg3
      • 2.Qxe5#
      • 2.Qd3#
    • 1...Rg4
      • 2.Qd3#
    • 1...Rg5
      • 2.Qxe5#
      • 2.Qd3#
    • 1...Rxd6+
      • 2.Sxd6#
    • 1...Rg7
      • 2.Qxe5#
      • 2.Qd3#
    • 1...Bc6
      • 2.Qxe5#
      • 2.Qd3#
  • Tries
    • 1.Sg5+?
      • 1...Rxg5
        • 2.Qd3#
      • 1...hxg5!
    • 1.Bf2?
      • threat
        • 2.Re3#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rg2
        • 2.Qxe5#
      • 1...Rg4
        • 2.Qd3#
      • 1...Sc3
        • 2.Rb4#
      • 1...Bd5!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Re3#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rg2
        • 2.Qxe5#
      • 1...Rg4
        • 2.Qd3#
      • 1...Sc3
        • 2.Rb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(i);N_PINQ(F),N_SPINB(f)::QAB1(F)
    • R(i);CHECK,XQ(F)::S(H),XR(i)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • R(i);N_PINQ(F),XS(H)::QAB1(F)
      • Refutation
        • P(j);XS(H)
    • Try
      • B(C);
      • Threat
        • R1(B)
      • Vars
        • R(i);CHECK,XQ(F)::S(H),XR(i)
        • R(i);N_PINQ(F),N_SPINR(d)::QAR1(F),XP(g)
        • R(i);N_PINQ(F),N_SPINB(f)::QAB1(F)
        • S(b);N_GUARD::R(B)
      • Refutation
        • B(k);
  • Actual
    • B(C);
    • Threat
      • R1(B)
    • Vars
      • R(i);CHECK,XQ(F)::S(H),XR(i)
      • R(i);N_PINQ(F),N_SPINR(d)::QAR1(F),XP(g)
      • R(i);N_PINQ(F),N_SPINB(f)::QAB1(F)
      • S(b);N_GUARD::R(B)
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