MESON Chess Problem Database

Problem Display
PID: 146017 (4R3/5K2/3BN1Q1/5N2/1Rb1k1P1/3p4/3P1rp1/3B4 w - - 0 1)

Mentasti, Gino

Il Problema, 1933

4R3/5K2/3BN1Q1/5N2/1Rb1k1P1/3p4/3P1rp1/3B4

#2

10 + 5

5454 Near Snap 2012
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5+
      • 2.Qxf5#
  • Tries
    • 1.Bf3+?
      • 1...Kxf3
        • 2.Sd4#
      • 1...Rxf3!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Bc6#
      • 1...Rxf5+
        • 2.Qxf5#
      • 1...Kf3
        • 2.Sd4#
      • 1...Kd5
        • 2.Sc7#

Anticipated by 146018(1927)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,OGATE,P_PINS(G),P_SPINR(a),XS(E)::QAB1(H),XR(a)
  • Tries
    • Try
      • B(A);CHECK,N_SPINS(E),P_SPINS(G)
      • Vars
        • K(e);N_SPINB(d),S_FLIGHT,XB(A)::S(E)
      • Refutation
        • R(a);N_PINS(G),P_PINS(E),XB(A)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • R(a);CHECK,OGATE,P_PINS(G),P_SPINR(a),XS(E)::QAB1(H),XR(a)
      • K(e);N_PINS(E),N_SPINB(d),P_PINS(G),S_FLIGHT::S(E)
      • K(e);N_SPINB(d),S_FLIGHT::S(G)
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