MESON Chess Problem Database

Problem Display
PID: 134062 (4N1r1/1rpKpp2/b1P5/R1b2kp1/4RN2/6B1/8/1B4nQ w - - 0 1)

Reeves, Alfred Christopher

The Problemist, 2009

4N1r1/1rpKpp2/b1P5/R1b2kp1/4RN2/6B1/8/1B4nQ

#2

9 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Sg7+?
      • 1...Kg4
        • 2.Se2#
        • 2.Sfh5#
      • 1...Kf6
        • 2.Qh6#
      • 1...Rxg7!
    • 1.Re5+?
      • 1...Kxe5
        • 2.Se2#
        • 2.Se6#
        • 2.Qe4#
        • 2.Qd5#
      • 1...Kg4!
    • 1.Rxc5+?
      • 1...Kg4
        • 2.Se2#
        • 2.Sh5#
      • 1...e5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Sxe7#
      • 1...Kg6
        • 2.Re6#
      • 1...Rxe8
        • 2.Qh7#
      • 1...g4
        • 2.Re5#
      • 1...Rb5
        • 2.Rb4#
      • 1...Bb5
        • 2.Rc4#
      • 1...e5
        • 2.Rf4#
      • 1...e6
        • 2.Se7#

This is a version of 81849

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(c);N_SPINB(b),P-FLIGHT::QAR2(B)
      • Refutation
        • R(j);XS(I)
    • Try
      • R(D);CHECK,N_PINB(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);CHECK,XB(b)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • S(E);N_PINB(b)
    • Threat
      • S(E),XP(h)
    • Vars
      • K(c);S_FLIGHT::B(A)+R(D),DCHECK
      • R(j);N_GUARD,XS(I)::QAB(B)
      • P(d);SBLOCK::B(A)+R(D),DCHECK
      • R(f);S_CUTB(e)::B(A)+R(D)
      • B(e);P_PINP(G),S_CUTR(f)::B(A)+R(D)
      • P(h);SBLOCK::B(A)+R(D),DCHECK
      • P(h);::S(E)
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