MESON Chess Problem Database

Problem Display
PID: 245640 (2R1Bn2/2b3p1/Kp5q/1P1kp3/1PNNR3/5Q2/8/8 w - - 0 1)

Musante, Horacio Luis

Norsk Sjakkblad, 1952

2R1Bn2/2b3p1/Kp5q/1P1kp3/1PNNR3/5Q2/8/8

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb3#
    • 1...Qd6
      • 2.Se3#
    • 1...Bd6
      • 2.Sxb6#
    • 1...Sg6
      • 2.Bf7#
  • Tries
    • 1.Se3+?
      • 1...Kd6
        • 2.Qxf8#
      • 1...Qxe3!
    • 1.Bc6+?
      • 1...Kxc4
        • 2.Sc2#
        • 2.Se2#
        • 2.Sb3#
        • 2.Sf5#
        • 2.Se6#
        • 2.Qb3#
      • 1...Qxc6!
    • 1.Rf4+?
      • 1...Kxc4
        • 2.Qb3#
      • 1...e4!
    • 1.Rg4+?
      • 1...Kxc4
        • 2.Qb3#
      • 1...e4!
    • 1.Rh4+?
      • 1...Kxc4
        • 2.Qb3#
      • 1...e4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxc7#
      • 1...Kxe6
        • 2.Qf7#
      • 1...Qxe6
        • 2.Qd3#
      • 1...Sxe6
        • 2.Bc6#
      • 1...Bd6
        • 2.Rxe5#
      • 1...Bb8
        • 2.Rxe5#
      • 1...Bd8
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • K(a);OGATEB,P_SPINB(e),S_FLIGHT,XS(C)::QAB1(A)
    • Q(d);N_GUARD,SBLOCK::S(C)
    • B(e);N_GUARD,SBLOCK,S_CUTQ(d)::S(C),XP(c)
    • S(g);N_GUARD,S_CUTQ(d)::B(I)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(a);P-FLIGHT::QAB(A),XS(g)
      • Refutation
        • Q(d);XS(C)
    • Try
      • B(I);CHECK
      • Refutation
        • Q(d);XB(I)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);OGATEB,P_SPINB(e),S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);OGATEB,P_SPINB(e),S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • P(b);P_SPINP(b)
    • Try
      • R(E);CHECK
      • Vars
        • K(a);OGATEB,P_SPINB(e),S_FLIGHT,XS(C)::QAB1(A)
      • Refutation
        • P(b);P_SPINP(b)
  • Actual
    • S(D);
    • Threat
      • S(D),XB(e)
    • Vars
      • K(a);OGATEB,P_SPINP(b),S_FLIGHT,XS(D)::QAB1(A)
      • Q(d);SBLOCK,XS(D)::QAR2(A)
      • S(g);SBLOCK,XS(D)::B(I)
      • B(e);::QAB(A)+R(E),DCHECK,XP(b)
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