MESON Chess Problem Database

Problem Display
PID: 243631 (8/6p1/1prp4/8/1R6/3b1Q2/2p2n2/k1N1K3 w - - 0 1)

Balcu, Silviu

Revista Romana de Sah, 1958

8/6p1/1prp4/8/1R6/3b1Q2/2p2n2/k1N1K3

#2

4 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Qa8#
    • 1...Bf1
      • 2.Qa3#
    • 1...Be2
      • 2.Qa3#
    • 1...Bc4
      • 2.Qc3#
    • 1...Be4
      • 2.Qa3#
    • 1...Bb5
      • 2.Qa3#
    • 1...Bf5
      • 2.Qa3#
    • 1...Ba6
      • 2.Qa3#
    • 1...Bg6
      • 2.Qa3#
    • 1...Bh7
      • 2.Qa3#
  • Tries
    • 1.Qxc6?
      • threat
        • 2.Qa4#
        • 2.Qc3#
      • 1...Bb5
        • 2.Qc3#
      • 1...Sd1
        • 2.Qa4#
      • 1...Se4
        • 2.Qa4#
      • 1...b5
        • 2.Qa8#
        • 2.Qc3#
        • 2.Qa6#
      • 1...Bc4!
    • 1.Qxd3?
      • threat
        • 2.Qa6#
        • 2.Qa3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Rc4
        • 2.Qa3#
      • 1...Rc5
        • 2.Qa3#
      • 1...b5
        • 2.Qa3#
      • 1...Sxd3+!
    • 1.Qf6+?
      • 1...Rc3
        • 2.Qxc3#
      • 1...gxf6!
    • 1.Qf7?
      • threat
        • 2.Qa2#
      • 1...Rc4
        • 2.Qa7#
      • 1...Bc4
        • 2.Qxg7#
      • 1...d5!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qa2#
      • 1...Rc4
        • 2.Qa8#
      • 1...Bc4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • R(f);OGATE::QAB(C)
    • B(d);OGATE::QAR2(C)
    • B(d);OGATE::QAB(C)
  • Tries
    • Try
      • Q(C);XR(f)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB(C)
        • S(c);::QAR(C)
      • Refutation
        • B(d);
    • Try
      • Q(C);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • R(f);N_GUARD::QAB(C),XR(f)
        • R(f);::QAR2(C)
        • P(e);::QAR2(C)
      • Refutation
        • S(c);CHECK,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAB(C),XR(f)
      • Refutation
        • P(h);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • R(f);S_CUTB(d)::QAR(C)
        • B(d);S_CUTR(f)::QAB(C),XP(h)
      • Refutation
        • P(g);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • R(f);OGATE::QAB(C)
      • B(d);S_CUTR(f)::QAB(C)
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