MESON Chess Problem Database

Problem Display
PID: 52237 (2R5/5p2/2b5/6B1/1R1n4/3k1p2/3p1K2/3Q4 w - - 0 1)

Righi, Mario

Probleemblad, 2004

(First published on Mon Mar 1 2004)

2R5/5p2/2b5/6B1/1R1n4/3k1p2/3p1K2/3Q4

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qxd2#
    • 1...Be4
      • 2.Qxd2#
    • 1...Sc2
      • 2.Qxd2#
    • 1...Se2
      • 2.Qxd2#
    • 1...Sb3
      • 2.Qxb3#
    • 1...Sb5
      • 2.Qxd2#
    • 1...Sf5
      • 2.Qb3#
      • 2.Qxd2#
    • 1...Se6
      • 2.Qb3#
      • 2.Qxd2#
  • Tries
    • 1.Re8?
      • threat
        • 2.Re3#
        • 2.Qxd2#
      • 1...Kc3
        • 2.Qxd2#
      • 1...Be4
        • 2.Qxd2#
      • 1...Sc2
        • 2.Qxd2#
      • 1...Sb3
        • 2.Re3#
        • 2.Qxb3#
      • 1...Sf5
        • 2.Qb3#
        • 2.Qxd2#
      • 1...Se6
        • 2.Qb3#
        • 2.Qxd2#
      • 1...Bxe8!
    • 1.Qb1+?
      • 1...Sc2
        • 2.Qb3#
      • 1...Kc3!
  • Keys
    • 1.Bf6!
      • 1...Kc3
        • 2.Qb3#
      • 1...Ke4
        • 2.Qxf3#
      • 1...Ba4
        • 2.Rxd4#
      • 1...Be4
        • 2.Rxd4#
      • 1...Bb5
        • 2.Rxd4#
      • 1...Bd5
        • 2.Rxd4#
      • 1...Bb7
        • 2.Rxd4#
      • 1...Bd7
        • 2.Rxd4#
      • 1...Ba8
        • 2.Rxd4#
      • 1...Be8
        • 2.Rxd4#
      • 1...Sc2
        • 2.Qf1#
      • 1...Se2
        • 2.Qb1#
      • 1...Sb3
        • 2.Qxb3#
        • 2.Qb1#
      • 1...Sb5
        • 2.Qb1#
      • 1...Sf5
        • 2.Qb3#
        • 2.Qb1#
      • 1...Se6
        • 2.Qb3#
        • 2.Qb1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 5
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINP(a),P-FLIGHT,P_SPINB(e)::QAB1(A),XP(a)
    • B(e);SBLOCK::QAR1(A),XP(a)
    • S(d);::QAR1(A),XP(a)
    • S(d);N_GUARD::QAR2(A),XS(d)
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAB1(A),XP(a)
        • B(e);::QAR1(A),XP(a)
        • S(d);::QAR1(A),XP(a)
      • Refutation
        • B(e);XR(E)
    • Try
      • Q(A);CHECK,N_PINP(a)
      • Vars
        • S(d);N_GUARD,P_SPINS(d)::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT,P_SPINB(e)
  • Actual
    • B(D);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT,P_SPINB(e),P_SPINS(d)::QAR1(A)
      • K(b);N_SPINP(a),P_SPINS(d),S_FLIGHT::QAB1(A),XP(c)
      • B(e);::R1(C),XS(d)
      • S(d);N_GUARD,SBLOCK::QAB(A)
      • S(d);N_GUARD::QAB(A)
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