MESON Chess Problem Database

Problem Display
PID: 277102 (8/2K2B2/8/1pk1p2r/1p3P2/b5p1/2P5/QR6 w - - 0 1)

Prcic, Mike

The Problemist Supplement, 2023

8/2K2B2/8/1pk1p2r/1p3P2/b5p1/2P5/QR6

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qxe5#
    • 1...Rh2
      • 2.Qxe5#
    • 1...Rh3
      • 2.Qxe5#
    • 1...Rh4
      • 2.Qxe5#
    • 1...Rh6
      • 2.Qxe5#
    • 1...Rh7
      • 2.Qxe5#
    • 1...Rh8
      • 2.Qxe5#
    • 1...Bc1
      • 2.Qa7#
    • 1...Bb2
      • 2.Qa7#
    • 1...b3
      • 2.Qc3#
  • Tries
    • 1.Rb3?
      • threat
        • 2.Qg1#
      • 1...Bb2
        • 2.Qa7#
      • 1...Rh1
        • 2.Qxe5#
      • 1...Rh2
        • 2.Qxe5#
      • 1...Bc1
        • 2.Qa7#
      • 1...e4!
    • 1.f5?
      • threat
        • 2.Qxe5#
      • 1...Bb2
        • 2.Qa7#
      • 1...b3
        • 2.Qc3#
      • 1...e4
        • 2.Qe5#
      • 1...Rxf5!
  • Keys
    • 1.Rh1!
      • threat
        • 2.Qg1#
      • 1...Rxh1
        • 2.Qxe5#
      • 1...Bb2
        • 2.Qa7#
      • 1...b3
        • 2.Qc3#
      • 1...Rh2
        • 2.Qxe5#
      • 1...Bc1
        • 2.Qa7#
      • 1...e4
        • 2.Rxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD::QAR2(A),XP(f)
    • R(g);N_GUARD,P_PINB(F)::QAR2(A),XP(f)
    • B(a);OGATE::QAB(A)
    • P(c);N_GUARD::QAR2(A)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAB(A)
      • Vars
        • B(a);OGATE::QAB(A)
        • R(g);N_GUARD::QAR2(A),XP(f)
      • Refutation
        • P(f);
    • Try
      • P(D);
      • Threat
        • QAR2(A),XP(f)
      • Vars
        • B(a);OGATE::QAB(A)
        • P(c);N_GUARD::QAR2(A)
        • P(f);::QAR2(A)
      • Refutation
        • R(g);XP(D)
  • Actual
    • R(B);
    • Threat
      • QAB(A)
    • Vars
      • R(g);N_GUARD,XR(B)::QAR2(A),XP(f)
      • B(a);OGATE::QAB(A)
      • P(c);N_GUARD::QAR2(A)
      • R(g);N_GUARD::QAR2(A),XP(f)
      • P(f);OGATEB::R(B),XR(g)
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