MESON Chess Problem Database

Problem Display
PID: 195757 (3N2B1/p1pN4/2qPRP2/Rnpk4/1p3p2/3K1p2/8/3Q3b w - - 0 1)

Reynders, Louis Joan Marie

Haagsche Post, 1933

3N2B1/p1pN4/2qPRP2/Rnpk4/1p3p2/3K1p2/8/3Q3b

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd6
      • 2.Re5#
    • 1...Sc3
      • 2.Qb3#
    • 1...Sxd6
      • 2.Re5#
    • 1...f2
      • 2.Qh5#
    • 1...c4+
      • 2.Kc2#
    • 1...cxd6
      • 2.Re1#
      • 2.Re2#
      • 2.Re3#
      • 2.Re4#
      • 2.Re5#
      • 2.Re7#
      • 2.Re8#
  • Tries
    • 1.Kc2+?
      • 1...Kc4
        • 2.Se5#
        • 2.Re4#
        • 2.Qd3#
      • 1...Sd4+!
    • 1.Rxb5?
      • threat
        • 2.Qb3#
      • 1...b3
        • 2.Kc3#
        • 2.Qxb3#
      • 1...Qxb5+!
    • 1.Qe1?
      • threat
        • 2.Qe4#
        • 2.Qe5#
      • 1...Qxd6
        • 2.Re5#
        • 2.Qe4#
      • 1...Sxd6
        • 2.Re5#
        • 2.Qe5#
      • 1...cxd6
        • 2.Re2#
        • 2.Re3#
        • 2.Re4#
        • 2.Re5#
        • 2.Re7#
        • 2.Re8#
        • 2.Qe4#
      • 1...Sc3
        • 2.Qe5#
      • 1...f2
        • 2.Qe5#
      • 1...c4+!
    • 1.f7?
      • threat
        • 2.Sf6#
      • 1...c4+
        • 2.Kc2#
      • 1...Qxd7!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Be4#
      • 1...c4+
        • 2.Kc2#
      • 1...Sxd6
        • 2.Re5#
      • 1...Sc3
        • 2.Qb3#
      • 1...f2
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • Q(h);SBLOCK,XP(D)::B(I)+R(E),DCHECK
    • S(e);P_SPINP(f)::QAB(A)
    • S(e);P_SPINP(f),SBLOCK,XP(D)::B(I)+R(E),DCHECK
    • P(b);OGATE::QAR(A)
    • P(f);CHECK,P_SPINS(e),SBLOCK::QAR(A)+K(B)
  • Tries
    • Try
      • K(B);CHECK,S_FLIGHT
      • Refutation
        • S(e);CHECK,P_SPINP(f),P_SPINS(e)
    • Try
      • R(C);P_PINP(f),XS(e)
      • Threat
        • QAB(A)
      • Refutation
        • Q(h);CHECK,N_SPINP(f),XR(C)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(e);P_SPINP(f)::QAR1(A)
        • P(b);::QAR1(A)
      • Refutation
        • P(f);CHECK,P_SPINS(e)
    • Try
      • P(F);
      • Threat
        • S(G)
      • Vars
        • P(f);CHECK,P_SPINS(e),SBLOCK::QAR(A)+K(B)
      • Refutation
        • Q(h);XS(G)
  • Actual
    • B(I);
    • Threat
      • B(I)
    • Vars
      • P(f);CHECK,P_SPINS(e),SBLOCK::QAR(A)+K(B)
      • S(e);P_SPINP(f),SBLOCK,XP(D)::R1(E)
      • S(e);P_SPINP(f)::QAB(A)
      • P(b);OGATE::QAR(A)
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