MESON Chess Problem Database

Problem Display
PID: 47811 (8/8/8/8/8/2pQ3n/3b2R1/K2k4 w - - 0 1)

McDowell, Michael

Newtownards Spectator, 1990

8/8/8/8/8/2pQ3n/3b2R1/K2k4

#2

3 + 4

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Qb1#
    • 1...Ke1
      • 2.Qe2#
    • 1...Sg1
      • 2.Rxg1#
    • 1...Sf2
      • 2.Rg1#
    • 1...Sf4
      • 2.Rg1#
    • 1...Sg5
      • 2.Rg1#
    • 1...c2
      • 2.Qxd2#
  • Tries
    • 1.Kb1?
      • threat
        • 2.Qe2#
      • 1...Ke1
        • 2.Qe2#
      • 1...Sg1
        • 2.Rxg1#
      • 1...Sf2
        • 2.Rg1#
      • 1...Sf4
        • 2.Rg1#
      • 1...c2+!
    • 1.Rxd2+?
      • 1...Kc1
        • 2.Rd1#
        • 2.Rc2#
        • 2.Qc2#
        • 2.Qxc3#
      • 1...Ke1
        • 2.Qe2#
      • 1...cxd2!
    • 1.Rf2?
      • threat
        • 2.Rf1#
      • 1...Kc1
        • 2.Qb1#
      • 1...Ke1
        • 2.Rf1#
        • 2.Qf1#
        • 2.Qe2#
      • 1...Sxf2!
    • 1.Qf1+?
      • 1...Kc2
        • 2.Qb1#
      • 1...Be1!
  • Keys
    • 1.Ka2!
      • 1...Kc1
        • 2.Qb1#
      • 1...Ke1
        • 2.Qe2#
      • 1...Sg1
        • 2.Rxg1#
      • 1...Sf2
        • 2.Rg1#
      • 1...Sf4
        • 2.Rg1#
      • 1...Sg5
        • 2.Rg1#
      • 1...c2
        • 2.Qxd2#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
    • S(d);N_GUARD::R(B),XS(d)
    • S(d);N_GUARD::R(B)
    • P(c);N_GUARD::QAR1(C),XB(b)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAB1(C)
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
        • S(d);N_GUARD::R(B),XS(d)
        • S(d);N_GUARD::R(B)
      • Refutation
        • P(c);CHECK
    • Try
      • R(B);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT::QAR1(C)
      • Refutation
        • P(c);P_SPINP(c),XR(B)
    • Try
      • R(B);
      • Threat
        • R(B)
      • Vars
        • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
      • Refutation
        • S(d);XR(B)
    • Try
      • Q(C);CHECK,N_PINB(b)
      • Vars
        • K(a);OGATE,P_SPINB(b),S_FLIGHT::QAB1(C)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT::QAR1(C)
      • S(d);N_GUARD::R(B),XS(d)
      • S(d);N_GUARD::R(B)
      • P(c);N_GUARD::QAR1(C),XB(b)
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