MESON Chess Problem Database

Problem Display
PID: 140392 (7n/8/5P1k/3pN3/3P1PK1/6p1/7q/1Q5R w - - 0 1)

McDowell, Michael

The Wangling Wizards, 2005

7n/8/5P1k/3pN3/3P1PK1/6p1/7q/1Q5R

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qxh1
      • 2.Qxh1#
    • 1...Qh3+
      • 2.Rxh3#
    • 1...Qh4+
      • 2.Rxh4#
    • 1...Qh5+
      • 2.Rxh5#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sf7
      • 2.Sxf7#
      • 2.Qg6#
    • 1...g2
      • 2.Rxh2#
  • Tries
    • 1.Qc2?
      • 1...Qh3+
        • 2.Rxh3#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qh5+
        • 2.Rxh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sf7
        • 2.Sxf7#
        • 2.Qg6#
      • 1...g2
        • 2.Rxh2#
      • 1...Qxh1!
    • 1.Qd3?
      • 1...Qh3+
        • 2.Rxh3#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qh5+
        • 2.Rxh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sf7
        • 2.Sxf7#
        • 2.Qg6#
      • 1...g2
        • 2.Rxh2#
      • 1...Qxh1!
    • 1.Qe4?
      • 1...Qh3+
        • 2.Rxh3#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qh5+
        • 2.Rxh5#
      • 1...Qxh1
        • 2.Qxh1#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sf7
        • 2.Sxf7#
        • 2.Qg6#
      • 1...g2
        • 2.Rxh2#
      • 1...dxe4!
    • 1.Qf5?
      • 1...Qh3+
        • 2.Rxh3#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qh5+
        • 2.Rxh5#
        • 2.Qxh5#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Sf7
        • 2.Sxf7#
        • 2.Qg6#
      • 1...g2
        • 2.Rxh2#
      • 1...Qxh1!
    • 1.Qb7?
      • threat
        • 2.Qg7#
      • 1...Qh3+
        • 2.Rxh3#
      • 1...Qh4+
        • 2.Rxh4#
      • 1...Qh5+
        • 2.Rxh5#
      • 1...Sf7!
  • Keys
    • 1.Kf3!
      • 1...Qxh1+
        • 2.Qxh1#
      • 1...Qh5+
        • 2.Sg4#
      • 1...Kh5
        • 2.Qh7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Qh3
        • 2.Rxh3#
      • 1...Qh4
        • 2.Rxh4#
      • 1...Sf7
        • 2.Qg6#
      • 1...g2
        • 2.Rxh2#

This is a version of 119

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_SPINQ(a),OGATE,XR(B)::QAR(A),XQ(a)
    • Q(a);CHECK,OGATE::R(B),XQ(a)
    • Q(a);CHECK,OGATE::R1(B),XQ(a)
    • S(e);N_GUARD::QAR1(A),XS(e)
    • P(b);N_GUARD::R(B),XQ(a)
  • Tries
    • Try
      • Q(A);
      • Vars
        • Q(a);CHECK,OGATE::R(B),XQ(a)
        • Q(a);CHECK,OGATE::R1(B),XQ(a)
        • S(e);N_GUARD::QAR1(A),XS(e)
        • P(b);N_GUARD::R(B),XQ(a)
      • Refutation
        • Q(a);N_SPINQ(a),XR(B)
    • Try
      • Q(A);
      • Vars
        • Q(a);CHECK,OGATE::R(B),XQ(a)
        • Q(a);CHECK,OGATE::R1(B),XQ(a)
        • S(e);N_GUARD::QAR1(A),XS(e)
        • P(b);N_GUARD::R(B),XQ(a)
      • Refutation
        • Q(a);N_SPINQ(a),XR(B)
    • Try
      • Q(A);
      • Vars
        • Q(a);CHECK,OGATE::R(B),XQ(a)
        • Q(a);CHECK,OGATE::R1(B),XQ(a)
        • Q(a);N_SPINQ(a),OGATE,XR(B)::QAR(A),XQ(a)
        • S(e);N_GUARD::QAR1(A),XS(e)
        • P(b);N_GUARD::R(B),XQ(a)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Vars
        • Q(a);CHECK,OGATE::R(B),XQ(a)
        • S(e);N_GUARD::QAR1(A),XS(e)
        • P(b);N_GUARD::R(B),XQ(a)
      • Refutation
        • Q(a);N_SPINQ(a),XR(B)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • Q(a);CHECK,OGATE::R(B),XQ(a)
        • Q(a);CHECK,OGATE::R1(B),XQ(a)
      • Refutation
        • S(e);
  • Actual
    • K(E);S_FLIGHT
    • Vars
      • Q(a);CHECK,N_SPINQ(a),OGATE,XR(B)::QAR(A),XQ(a)
      • Q(a);CHECK::S(F)
      • K(d);P-FLIGHT::QAR2(A)
      • S(e);N_GUARD::QAR1(A),XS(e)
      • Q(a);OGATE::R(B),XQ(a)
      • S(e);N_GUARD::QAR1(A)
      • P(b);N_GUARD::R(B),XQ(a)
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