MESON Chess Problem Database

Problem Display
PID: 8002 (8/8/8/8/4N2Q/8/2K2p2/3Bk2n w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

8/8/8/8/4N2Q/8/2K2p2/3Bk2n

#2

4 + 3

2838 Fun with Chess Miniatures 1996
5454 Near Snap 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Kf1
      • 2.Qxh1#
  • Tries
    • 1.Kc1?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Sc3?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Sc5?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Sg5?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Sd6?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Sf6?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Bf3?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Bg4?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Bh5?
      • 1...Kf1
        • 2.Qxh1#
      • 1...Sg3!
    • 1.Qh5?
      • threat
        • 2.Qe2#
      • 1...Kf1
        • 2.Qxh1#
      • 1...f1Q
        • 2.Qa5#
      • 1...f1B
        • 2.Qa5#
      • 1...Sg3!
  • Keys
    • 1.Qh2!
      • 1...Kf1
        • 2.Qxh1#
      • 1...f1Q
        • 2.Qd2#
      • 1...f1S
        • 2.Qe2#
      • 1...f1B
        • 2.Qd2#
      • 1...f1R
        • 2.Qd2#
        • 2.Qe2#
      • 1...Sg3
        • 2.Qxf2#

Anticipated by 17220(1925)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • S(C);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • B(A);
      • Vars
        • K(a);N_SPINP(c),P-FLIGHT::QAR2(D),XS(b)
      • Refutation
        • S(b);N_SPINP(c)
    • Try
      • Q(D);N_PINP(c)
      • Threat
        • QAR1(D)
      • Vars
        • K(a);P-FLIGHT::QAR2(D),XS(b)
        • P(c);SBLOCK::QAB(D)
      • Refutation
        • S(b);
  • Actual
    • Q(D);N_PINP(c)
    • Vars
      • K(a);P-FLIGHT::QAR2(D),XS(b)
      • P(c);OGATE,SBLOCK::QAB1(D)
      • P(c);OGATE::QAR1(D)
      • S(b);N_GUARD::QAB1(D),XP(c)
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